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QGIS v.net.steiner 'not correctly generated' error



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3















I'm trying to generate a Steiner tree in QGIS 2.18.2 using a simple set of points, and a simple line vector. See the screen shot below:



enter image description here



I then open up v.net.steiner, set the points and vector layers.



enter image description here



However, I get the following message saying 'The following layers were not correctly generated'. See below:
enter image description here



Having looked at other questions similar to this, (i) I have made sure both layers are in WGS84 for consistency, and (ii) I have tried saving the output file in different places such as on my desktop, or as a temporary file. Neither of these worked however.



Does anyone have any other suggestions?



Output log is as follows:




`Algorithm v.net.steiner - Creates Steiner tree for the network and
given terminals starting... g.proj -c proj4="+proj=longlat
+datum=WGS84 +no_defs" v.in.ogr min_area=0.0001 snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
model/Data/OpenStreetMap"
layer=manhattan_line_vector_layer_WGS84_4_points
output=tmp15156647622235 --overwrite -o v.in.ogr min_area=0.0001
snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
output=tmp15156647622236 --overwrite -o g.region n=52.2135296
s=52.210668029 e=0.1360675 w=0.1327734 res=100 v.net -s
input=tmp15156647622235 points=tmp15156647622236 out=tmp15156647622237
op=connect threshold=50 v.db.connect -o map=tmp15156647622237
table=tmp15156647622236 layer=2 v.net.steiner input=tmp15156647622237
arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite v.out.ogr -s
-e input=output22f3548a7a4a413eb6b3039d3c14746c type=auto output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
format=ESRI_Shapefile output_layer=output --overwrite



C:PROGRA~1QGIS2~1.18bin>set HOME=C:UsersEJO31



C:PROGRA~1QGIS2~1.18bin>set
GISRC=C:UsersEJO31.qgis2processingprocessing.gisrc7



C:PROGRA~1QGIS2~1.18bin>set
WINGISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



C:PROGRA~1QGIS2~1.18bin>set
GISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



C:PROGRA~1QGIS2~1.18bin>set
GRASS_PROJSHARE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5shareproj



C:PROGRA~1QGIS2~1.18bin>set GRASS_MESSAGE_FORMAT=plain



C:PROGRA~1QGIS2~1.18bin>if "" == "" set
PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
FilesRR-3.4.0binx64;C:Program FilesRStudiobin



C:PROGRA~1QGIS2~1.18bin>if not "" == "" set
PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
FilesRR-3.4.0binx64;C:Program FilesRStudiobin



C:PROGRA~1QGIS2~1.18bin>set GRASS_VERSION=7.0.0



C:PROGRA~1QGIS2~1.18bin>if not "" == "" goto langset



C:PROGRA~1QGIS2~1.18bin>FOR /F "usebackq delims==" %i IN
("C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwinlocale") DO
@set LANG=%i



C:PROGRA~1QGIS2~1.18bin>set
PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY



C:PROGRA~1QGIS2~1.18bin>set
PYTHONPATH=;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcpython;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwxpythonn



C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="MAPSET=PERMANENT"



C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="LOCATION=temp_location"



C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
set="LOCATION_NAME=temp_location"



C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
set="GISDBASE=C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02grassdata"



C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="GRASS_GUI=text"



C:PROGRA~1QGIS2~1.18bin>g.proj -c proj4="+proj=longlat +datum=WGS84
+no_defs" Default region was updated to the new projection, but if you have multiple mapsets g.region -d should be run in each to
update the region from the default Projection information updated



C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
model/Data/OpenStreetMap"
layer=manhattan_line_vector_layer_WGS84_4_points
output=tmp15156647622235 --overwrite -o Over-riding projection check
Check if OGR layer contains polygons...
0..10..20..30..40..50..60..70..80..90..100 Importing 10 features (OGR layer )...
0..10..20..30..40..50..60..70..80..90..100
----------------------------------------------------- Building topology for vector map ... Registering primitives...



10 primitives registered 62 vertices registered Building areas...
0..10..20..30..40..50..60..70..80..90..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
10..20..30..40..50..60..70..80..90..100 Number of nodes: 15 Number of primitives: 10 Number of points: 0 Number of lines: 10 Number of
boundaries: 0 Number of centroids: 0 Number of areas: 0 Number of
isles: 0



C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
output=tmp15156647622236 --overwrite -o Over-riding projection check
Check if OGR layer contains polygons...
0..20..40..60..80..100 Column name renamed to Column name renamed to Importing 5 features (OGR layer )...
0..20..40..60..80..100
----------------------------------------------------- Building topology for vector map ... Registering primitives...



5 primitives registered 5 vertices registered Building areas...
0..20..40..60..80..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
20..40..60..80..100 Number of nodes: 0 Number of primitives: 5 Number of points: 5 Number of lines: 0 Number of boundaries: 0
Number of centroids: 0 Number of areas: 0 Number of isles: 0



C:PROGRA~1QGIS2~1.18bin>g.region n=52.2135296 s=52.210668029
e=0.1360675 w=0.1327734 res=100



C:PROGRA~1QGIS2~1.18bin>v.net -s input=tmp15156647622235
points=tmp15156647622236 out=tmp15156647622237 op=connect threshold=50
Copying features...
10..20..30..40..50..60..70..80..90..100 Building topology for vector map ... Registering primitives...



10 primitives registered 62 vertices registered Number of nodes: 15
Number of primitives: 10 Number of points: 0 Number of lines: 10
Number of boundaries: 0 Number of centroids: 0 Number of areas: -
Number of isles: - Copying attributes... Building topology for
vector map ... Registering primitives...



19 primitives registered 75 vertices registered Building areas...
0..5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 0 areas built 0 isles built Attaching islands... Attaching
centroids...
5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Number of nodes: 19 Number of primitives: 19 Number of points: 5
Number of lines: 14 Number of boundaries: 0 Number of centroids: 0
Number of areas: 0 Number of isles: 0 v.net complete. 4 lines
(network arcs) written to output.



C:PROGRA~1QGIS2~1.18bin>v.db.connect -o map=tmp15156647622237
table=tmp15156647622236 layer=2 The table is now part of vector map
and may be deleted or overwritten by GRASS modules Select privileges
were granted on the table



C:PROGRA~1QGIS2~1.18bin>v.net.steiner input=tmp15156647622237
arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite Number of
terminals: 5 Number of Steiner points set to 3 Building graph...
Registering arcs...
5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Flattening the graph... Graph was built Init costs from node 9 Init
costs from node 12 Init costs from node 15 Init costs from node 17
Init costs from node 19 ERROR: Terminal at node [9] cannot be
connected to terminal at node [15]



C:PROGRA~1QGIS2~1.18bin>v.out.ogr -s -e
input=output22f3548a7a4a413eb6b3039d3c14746c type=auto
output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
format=ESRI_Shapefile output_layer=output --overwrite ERROR: Vector
map not found



C:PROGRA~1QGIS2~1.18bin>exit Converting outputs Loading resulting
layers



The following layers were not correctly generated. Network_Steiner You
can check the log messages to find more information about the
execution of the algorithm`











share|improve this question














bumped to the homepage by Community 17 mins ago


This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.






















    3















    I'm trying to generate a Steiner tree in QGIS 2.18.2 using a simple set of points, and a simple line vector. See the screen shot below:



    enter image description here



    I then open up v.net.steiner, set the points and vector layers.



    enter image description here



    However, I get the following message saying 'The following layers were not correctly generated'. See below:
    enter image description here



    Having looked at other questions similar to this, (i) I have made sure both layers are in WGS84 for consistency, and (ii) I have tried saving the output file in different places such as on my desktop, or as a temporary file. Neither of these worked however.



    Does anyone have any other suggestions?



    Output log is as follows:




    `Algorithm v.net.steiner - Creates Steiner tree for the network and
    given terminals starting... g.proj -c proj4="+proj=longlat
    +datum=WGS84 +no_defs" v.in.ogr min_area=0.0001 snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
    model/Data/OpenStreetMap"
    layer=manhattan_line_vector_layer_WGS84_4_points
    output=tmp15156647622235 --overwrite -o v.in.ogr min_area=0.0001
    snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
    model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
    output=tmp15156647622236 --overwrite -o g.region n=52.2135296
    s=52.210668029 e=0.1360675 w=0.1327734 res=100 v.net -s
    input=tmp15156647622235 points=tmp15156647622236 out=tmp15156647622237
    op=connect threshold=50 v.db.connect -o map=tmp15156647622237
    table=tmp15156647622236 layer=2 v.net.steiner input=tmp15156647622237
    arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
    output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite v.out.ogr -s
    -e input=output22f3548a7a4a413eb6b3039d3c14746c type=auto output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
    format=ESRI_Shapefile output_layer=output --overwrite



    C:PROGRA~1QGIS2~1.18bin>set HOME=C:UsersEJO31



    C:PROGRA~1QGIS2~1.18bin>set
    GISRC=C:UsersEJO31.qgis2processingprocessing.gisrc7



    C:PROGRA~1QGIS2~1.18bin>set
    WINGISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



    C:PROGRA~1QGIS2~1.18bin>set
    GISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



    C:PROGRA~1QGIS2~1.18bin>set
    GRASS_PROJSHARE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5shareproj



    C:PROGRA~1QGIS2~1.18bin>set GRASS_MESSAGE_FORMAT=plain



    C:PROGRA~1QGIS2~1.18bin>if "" == "" set
    PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
    FilesRR-3.4.0binx64;C:Program FilesRStudiobin



    C:PROGRA~1QGIS2~1.18bin>if not "" == "" set
    PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
    FilesRR-3.4.0binx64;C:Program FilesRStudiobin



    C:PROGRA~1QGIS2~1.18bin>set GRASS_VERSION=7.0.0



    C:PROGRA~1QGIS2~1.18bin>if not "" == "" goto langset



    C:PROGRA~1QGIS2~1.18bin>FOR /F "usebackq delims==" %i IN
    ("C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwinlocale") DO
    @set LANG=%i



    C:PROGRA~1QGIS2~1.18bin>set
    PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY



    C:PROGRA~1QGIS2~1.18bin>set
    PYTHONPATH=;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcpython;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwxpythonn



    C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="MAPSET=PERMANENT"



    C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="LOCATION=temp_location"



    C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
    set="LOCATION_NAME=temp_location"



    C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
    set="GISDBASE=C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02grassdata"



    C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="GRASS_GUI=text"



    C:PROGRA~1QGIS2~1.18bin>g.proj -c proj4="+proj=longlat +datum=WGS84
    +no_defs" Default region was updated to the new projection, but if you have multiple mapsets g.region -d should be run in each to
    update the region from the default Projection information updated



    C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
    input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
    model/Data/OpenStreetMap"
    layer=manhattan_line_vector_layer_WGS84_4_points
    output=tmp15156647622235 --overwrite -o Over-riding projection check
    Check if OGR layer contains polygons...
    0..10..20..30..40..50..60..70..80..90..100 Importing 10 features (OGR layer )...
    0..10..20..30..40..50..60..70..80..90..100
    ----------------------------------------------------- Building topology for vector map ... Registering primitives...



    10 primitives registered 62 vertices registered Building areas...
    0..10..20..30..40..50..60..70..80..90..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
    10..20..30..40..50..60..70..80..90..100 Number of nodes: 15 Number of primitives: 10 Number of points: 0 Number of lines: 10 Number of
    boundaries: 0 Number of centroids: 0 Number of areas: 0 Number of
    isles: 0



    C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
    input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
    model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
    output=tmp15156647622236 --overwrite -o Over-riding projection check
    Check if OGR layer contains polygons...
    0..20..40..60..80..100 Column name renamed to Column name renamed to Importing 5 features (OGR layer )...
    0..20..40..60..80..100
    ----------------------------------------------------- Building topology for vector map ... Registering primitives...



    5 primitives registered 5 vertices registered Building areas...
    0..20..40..60..80..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
    20..40..60..80..100 Number of nodes: 0 Number of primitives: 5 Number of points: 5 Number of lines: 0 Number of boundaries: 0
    Number of centroids: 0 Number of areas: 0 Number of isles: 0



    C:PROGRA~1QGIS2~1.18bin>g.region n=52.2135296 s=52.210668029
    e=0.1360675 w=0.1327734 res=100



    C:PROGRA~1QGIS2~1.18bin>v.net -s input=tmp15156647622235
    points=tmp15156647622236 out=tmp15156647622237 op=connect threshold=50
    Copying features...
    10..20..30..40..50..60..70..80..90..100 Building topology for vector map ... Registering primitives...



    10 primitives registered 62 vertices registered Number of nodes: 15
    Number of primitives: 10 Number of points: 0 Number of lines: 10
    Number of boundaries: 0 Number of centroids: 0 Number of areas: -
    Number of isles: - Copying attributes... Building topology for
    vector map ... Registering primitives...



    19 primitives registered 75 vertices registered Building areas...
    0..5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 0 areas built 0 isles built Attaching islands... Attaching
    centroids...
    5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Number of nodes: 19 Number of primitives: 19 Number of points: 5
    Number of lines: 14 Number of boundaries: 0 Number of centroids: 0
    Number of areas: 0 Number of isles: 0 v.net complete. 4 lines
    (network arcs) written to output.



    C:PROGRA~1QGIS2~1.18bin>v.db.connect -o map=tmp15156647622237
    table=tmp15156647622236 layer=2 The table is now part of vector map
    and may be deleted or overwritten by GRASS modules Select privileges
    were granted on the table



    C:PROGRA~1QGIS2~1.18bin>v.net.steiner input=tmp15156647622237
    arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
    output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite Number of
    terminals: 5 Number of Steiner points set to 3 Building graph...
    Registering arcs...
    5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Flattening the graph... Graph was built Init costs from node 9 Init
    costs from node 12 Init costs from node 15 Init costs from node 17
    Init costs from node 19 ERROR: Terminal at node [9] cannot be
    connected to terminal at node [15]



    C:PROGRA~1QGIS2~1.18bin>v.out.ogr -s -e
    input=output22f3548a7a4a413eb6b3039d3c14746c type=auto
    output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
    format=ESRI_Shapefile output_layer=output --overwrite ERROR: Vector
    map not found



    C:PROGRA~1QGIS2~1.18bin>exit Converting outputs Loading resulting
    layers



    The following layers were not correctly generated. Network_Steiner You
    can check the log messages to find more information about the
    execution of the algorithm`











    share|improve this question














    bumped to the homepage by Community 17 mins ago


    This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.


















      3












      3








      3


      1






      I'm trying to generate a Steiner tree in QGIS 2.18.2 using a simple set of points, and a simple line vector. See the screen shot below:



      enter image description here



      I then open up v.net.steiner, set the points and vector layers.



      enter image description here



      However, I get the following message saying 'The following layers were not correctly generated'. See below:
      enter image description here



      Having looked at other questions similar to this, (i) I have made sure both layers are in WGS84 for consistency, and (ii) I have tried saving the output file in different places such as on my desktop, or as a temporary file. Neither of these worked however.



      Does anyone have any other suggestions?



      Output log is as follows:




      `Algorithm v.net.steiner - Creates Steiner tree for the network and
      given terminals starting... g.proj -c proj4="+proj=longlat
      +datum=WGS84 +no_defs" v.in.ogr min_area=0.0001 snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap"
      layer=manhattan_line_vector_layer_WGS84_4_points
      output=tmp15156647622235 --overwrite -o v.in.ogr min_area=0.0001
      snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
      output=tmp15156647622236 --overwrite -o g.region n=52.2135296
      s=52.210668029 e=0.1360675 w=0.1327734 res=100 v.net -s
      input=tmp15156647622235 points=tmp15156647622236 out=tmp15156647622237
      op=connect threshold=50 v.db.connect -o map=tmp15156647622237
      table=tmp15156647622236 layer=2 v.net.steiner input=tmp15156647622237
      arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
      output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite v.out.ogr -s
      -e input=output22f3548a7a4a413eb6b3039d3c14746c type=auto output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
      format=ESRI_Shapefile output_layer=output --overwrite



      C:PROGRA~1QGIS2~1.18bin>set HOME=C:UsersEJO31



      C:PROGRA~1QGIS2~1.18bin>set
      GISRC=C:UsersEJO31.qgis2processingprocessing.gisrc7



      C:PROGRA~1QGIS2~1.18bin>set
      WINGISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



      C:PROGRA~1QGIS2~1.18bin>set
      GISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



      C:PROGRA~1QGIS2~1.18bin>set
      GRASS_PROJSHARE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5shareproj



      C:PROGRA~1QGIS2~1.18bin>set GRASS_MESSAGE_FORMAT=plain



      C:PROGRA~1QGIS2~1.18bin>if "" == "" set
      PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
      FilesRR-3.4.0binx64;C:Program FilesRStudiobin



      C:PROGRA~1QGIS2~1.18bin>if not "" == "" set
      PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
      FilesRR-3.4.0binx64;C:Program FilesRStudiobin



      C:PROGRA~1QGIS2~1.18bin>set GRASS_VERSION=7.0.0



      C:PROGRA~1QGIS2~1.18bin>if not "" == "" goto langset



      C:PROGRA~1QGIS2~1.18bin>FOR /F "usebackq delims==" %i IN
      ("C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwinlocale") DO
      @set LANG=%i



      C:PROGRA~1QGIS2~1.18bin>set
      PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY



      C:PROGRA~1QGIS2~1.18bin>set
      PYTHONPATH=;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcpython;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwxpythonn



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="MAPSET=PERMANENT"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="LOCATION=temp_location"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
      set="LOCATION_NAME=temp_location"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
      set="GISDBASE=C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02grassdata"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="GRASS_GUI=text"



      C:PROGRA~1QGIS2~1.18bin>g.proj -c proj4="+proj=longlat +datum=WGS84
      +no_defs" Default region was updated to the new projection, but if you have multiple mapsets g.region -d should be run in each to
      update the region from the default Projection information updated



      C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
      input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap"
      layer=manhattan_line_vector_layer_WGS84_4_points
      output=tmp15156647622235 --overwrite -o Over-riding projection check
      Check if OGR layer contains polygons...
      0..10..20..30..40..50..60..70..80..90..100 Importing 10 features (OGR layer )...
      0..10..20..30..40..50..60..70..80..90..100
      ----------------------------------------------------- Building topology for vector map ... Registering primitives...



      10 primitives registered 62 vertices registered Building areas...
      0..10..20..30..40..50..60..70..80..90..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
      10..20..30..40..50..60..70..80..90..100 Number of nodes: 15 Number of primitives: 10 Number of points: 0 Number of lines: 10 Number of
      boundaries: 0 Number of centroids: 0 Number of areas: 0 Number of
      isles: 0



      C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
      input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
      output=tmp15156647622236 --overwrite -o Over-riding projection check
      Check if OGR layer contains polygons...
      0..20..40..60..80..100 Column name renamed to Column name renamed to Importing 5 features (OGR layer )...
      0..20..40..60..80..100
      ----------------------------------------------------- Building topology for vector map ... Registering primitives...



      5 primitives registered 5 vertices registered Building areas...
      0..20..40..60..80..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
      20..40..60..80..100 Number of nodes: 0 Number of primitives: 5 Number of points: 5 Number of lines: 0 Number of boundaries: 0
      Number of centroids: 0 Number of areas: 0 Number of isles: 0



      C:PROGRA~1QGIS2~1.18bin>g.region n=52.2135296 s=52.210668029
      e=0.1360675 w=0.1327734 res=100



      C:PROGRA~1QGIS2~1.18bin>v.net -s input=tmp15156647622235
      points=tmp15156647622236 out=tmp15156647622237 op=connect threshold=50
      Copying features...
      10..20..30..40..50..60..70..80..90..100 Building topology for vector map ... Registering primitives...



      10 primitives registered 62 vertices registered Number of nodes: 15
      Number of primitives: 10 Number of points: 0 Number of lines: 10
      Number of boundaries: 0 Number of centroids: 0 Number of areas: -
      Number of isles: - Copying attributes... Building topology for
      vector map ... Registering primitives...



      19 primitives registered 75 vertices registered Building areas...
      0..5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 0 areas built 0 isles built Attaching islands... Attaching
      centroids...
      5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Number of nodes: 19 Number of primitives: 19 Number of points: 5
      Number of lines: 14 Number of boundaries: 0 Number of centroids: 0
      Number of areas: 0 Number of isles: 0 v.net complete. 4 lines
      (network arcs) written to output.



      C:PROGRA~1QGIS2~1.18bin>v.db.connect -o map=tmp15156647622237
      table=tmp15156647622236 layer=2 The table is now part of vector map
      and may be deleted or overwritten by GRASS modules Select privileges
      were granted on the table



      C:PROGRA~1QGIS2~1.18bin>v.net.steiner input=tmp15156647622237
      arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
      output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite Number of
      terminals: 5 Number of Steiner points set to 3 Building graph...
      Registering arcs...
      5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Flattening the graph... Graph was built Init costs from node 9 Init
      costs from node 12 Init costs from node 15 Init costs from node 17
      Init costs from node 19 ERROR: Terminal at node [9] cannot be
      connected to terminal at node [15]



      C:PROGRA~1QGIS2~1.18bin>v.out.ogr -s -e
      input=output22f3548a7a4a413eb6b3039d3c14746c type=auto
      output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
      format=ESRI_Shapefile output_layer=output --overwrite ERROR: Vector
      map not found



      C:PROGRA~1QGIS2~1.18bin>exit Converting outputs Loading resulting
      layers



      The following layers were not correctly generated. Network_Steiner You
      can check the log messages to find more information about the
      execution of the algorithm`











      share|improve this question














      I'm trying to generate a Steiner tree in QGIS 2.18.2 using a simple set of points, and a simple line vector. See the screen shot below:



      enter image description here



      I then open up v.net.steiner, set the points and vector layers.



      enter image description here



      However, I get the following message saying 'The following layers were not correctly generated'. See below:
      enter image description here



      Having looked at other questions similar to this, (i) I have made sure both layers are in WGS84 for consistency, and (ii) I have tried saving the output file in different places such as on my desktop, or as a temporary file. Neither of these worked however.



      Does anyone have any other suggestions?



      Output log is as follows:




      `Algorithm v.net.steiner - Creates Steiner tree for the network and
      given terminals starting... g.proj -c proj4="+proj=longlat
      +datum=WGS84 +no_defs" v.in.ogr min_area=0.0001 snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap"
      layer=manhattan_line_vector_layer_WGS84_4_points
      output=tmp15156647622235 --overwrite -o v.in.ogr min_area=0.0001
      snap=-1 input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
      output=tmp15156647622236 --overwrite -o g.region n=52.2135296
      s=52.210668029 e=0.1360675 w=0.1327734 res=100 v.net -s
      input=tmp15156647622235 points=tmp15156647622236 out=tmp15156647622237
      op=connect threshold=50 v.db.connect -o map=tmp15156647622237
      table=tmp15156647622236 layer=2 v.net.steiner input=tmp15156647622237
      arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
      output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite v.out.ogr -s
      -e input=output22f3548a7a4a413eb6b3039d3c14746c type=auto output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
      format=ESRI_Shapefile output_layer=output --overwrite



      C:PROGRA~1QGIS2~1.18bin>set HOME=C:UsersEJO31



      C:PROGRA~1QGIS2~1.18bin>set
      GISRC=C:UsersEJO31.qgis2processingprocessing.gisrc7



      C:PROGRA~1QGIS2~1.18bin>set
      WINGISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



      C:PROGRA~1QGIS2~1.18bin>set
      GISBASE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5



      C:PROGRA~1QGIS2~1.18bin>set
      GRASS_PROJSHARE=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5shareproj



      C:PROGRA~1QGIS2~1.18bin>set GRASS_MESSAGE_FORMAT=plain



      C:PROGRA~1QGIS2~1.18bin>if "" == "" set
      PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
      FilesRR-3.4.0binx64;C:Program FilesRStudiobin



      C:PROGRA~1QGIS2~1.18bin>if not "" == "" set
      PATH=C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesShapely-1.2.18-py2.7-win-amd64.eggshapelyDLLs;C:PROGRA~1QGIS2~1.18appsPython27DLLs;C:PROGRA~1QGIS2~1.18appsPython27libsite-packagesnumpycore;C:PROGRA~1QGIS2~1.18appsqgisbin;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5lib;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5bin;{app};C:PROGRA~1QGIS2~1.18appsPython27Scripts;C:PROGRA~1QGIS2~1.18bin;C:Windowssystem32;C:Windows;C:WindowsWBem;C:Program
      FilesRR-3.4.0binx64;C:Program FilesRStudiobin



      C:PROGRA~1QGIS2~1.18bin>set GRASS_VERSION=7.0.0



      C:PROGRA~1QGIS2~1.18bin>if not "" == "" goto langset



      C:PROGRA~1QGIS2~1.18bin>FOR /F "usebackq delims==" %i IN
      ("C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwinlocale") DO
      @set LANG=%i



      C:PROGRA~1QGIS2~1.18bin>set
      PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH;.MSC;.PY



      C:PROGRA~1QGIS2~1.18bin>set
      PYTHONPATH=;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcpython;C:PROGRA~1QGIS2~1.18appsgrassgrass-7.0.5etcwxpythonn



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="MAPSET=PERMANENT"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="LOCATION=temp_location"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
      set="LOCATION_NAME=temp_location"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe
      set="GISDBASE=C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02grassdata"



      C:PROGRA~1QGIS2~1.18bin>g.gisenv.exe set="GRASS_GUI=text"



      C:PROGRA~1QGIS2~1.18bin>g.proj -c proj4="+proj=longlat +datum=WGS84
      +no_defs" Default region was updated to the new projection, but if you have multiple mapsets g.region -d should be run in each to
      update the region from the default Projection information updated



      C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
      input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap"
      layer=manhattan_line_vector_layer_WGS84_4_points
      output=tmp15156647622235 --overwrite -o Over-riding projection check
      Check if OGR layer contains polygons...
      0..10..20..30..40..50..60..70..80..90..100 Importing 10 features (OGR layer )...
      0..10..20..30..40..50..60..70..80..90..100
      ----------------------------------------------------- Building topology for vector map ... Registering primitives...



      10 primitives registered 62 vertices registered Building areas...
      0..10..20..30..40..50..60..70..80..90..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
      10..20..30..40..50..60..70..80..90..100 Number of nodes: 15 Number of primitives: 10 Number of points: 0 Number of lines: 10 Number of
      boundaries: 0 Number of centroids: 0 Number of areas: 0 Number of
      isles: 0



      C:PROGRA~1QGIS2~1.18bin>v.in.ogr min_area=0.0001 snap=-1
      input="C:/Users/EJO31/Dropbox/Digital Comms - Fixed broadband
      model/Data/OpenStreetMap" layer=manhattan_drive_WGS84_4_points
      output=tmp15156647622236 --overwrite -o Over-riding projection check
      Check if OGR layer contains polygons...
      0..20..40..60..80..100 Column name renamed to Column name renamed to Importing 5 features (OGR layer )...
      0..20..40..60..80..100
      ----------------------------------------------------- Building topology for vector map ... Registering primitives...



      5 primitives registered 5 vertices registered Building areas...
      0..20..40..60..80..100 0 areas built 0 isles built Attaching islands... Attaching centroids...
      20..40..60..80..100 Number of nodes: 0 Number of primitives: 5 Number of points: 5 Number of lines: 0 Number of boundaries: 0
      Number of centroids: 0 Number of areas: 0 Number of isles: 0



      C:PROGRA~1QGIS2~1.18bin>g.region n=52.2135296 s=52.210668029
      e=0.1360675 w=0.1327734 res=100



      C:PROGRA~1QGIS2~1.18bin>v.net -s input=tmp15156647622235
      points=tmp15156647622236 out=tmp15156647622237 op=connect threshold=50
      Copying features...
      10..20..30..40..50..60..70..80..90..100 Building topology for vector map ... Registering primitives...



      10 primitives registered 62 vertices registered Number of nodes: 15
      Number of primitives: 10 Number of points: 0 Number of lines: 10
      Number of boundaries: 0 Number of centroids: 0 Number of areas: -
      Number of isles: - Copying attributes... Building topology for
      vector map ... Registering primitives...



      19 primitives registered 75 vertices registered Building areas...
      0..5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 0 areas built 0 isles built Attaching islands... Attaching
      centroids...
      5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Number of nodes: 19 Number of primitives: 19 Number of points: 5
      Number of lines: 14 Number of boundaries: 0 Number of centroids: 0
      Number of areas: 0 Number of isles: 0 v.net complete. 4 lines
      (network arcs) written to output.



      C:PROGRA~1QGIS2~1.18bin>v.db.connect -o map=tmp15156647622237
      table=tmp15156647622236 layer=2 The table is now part of vector map
      and may be deleted or overwritten by GRASS modules Select privileges
      were granted on the table



      C:PROGRA~1QGIS2~1.18bin>v.net.steiner input=tmp15156647622237
      arc_type=line,boundary terminal_cats="1-100000" npoints="-1"
      output=output22f3548a7a4a413eb6b3039d3c14746c --overwrite Number of
      terminals: 5 Number of Steiner points set to 3 Building graph...
      Registering arcs...
      5..10..15..21..26..31..36..42..47..52..57..63..68..73..78..84..89..94..100 Flattening the graph... Graph was built Init costs from node 9 Init
      costs from node 12 Init costs from node 15 Init costs from node 17
      Init costs from node 19 ERROR: Terminal at node [9] cannot be
      connected to terminal at node [15]



      C:PROGRA~1QGIS2~1.18bin>v.out.ogr -s -e
      input=output22f3548a7a4a413eb6b3039d3c14746c type=auto
      output="C:UsersEJO31AppDataLocalTempprocessing7112f5e23ee04250aae815ef39efcc02cb8c1eab320b46aca5fc9590aee4c19d"
      format=ESRI_Shapefile output_layer=output --overwrite ERROR: Vector
      map not found



      C:PROGRA~1QGIS2~1.18bin>exit Converting outputs Loading resulting
      layers



      The following layers were not correctly generated. Network_Steiner You
      can check the log messages to find more information about the
      execution of the algorithm`








      qgis grass






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Jan 11 '18 at 10:14









      Thirst for KnowledgeThirst for Knowledge

      422411




      422411





      bumped to the homepage by Community 17 mins ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.







      bumped to the homepage by Community 17 mins ago


      This question has answers that may be good or bad; the system has marked it active so that they can be reviewed.
























          1 Answer
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          Try and use UTM for all of your layers. Grass GIS prefers this






          share|improve this answer
























            Your Answer








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            Try and use UTM for all of your layers. Grass GIS prefers this






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              Try and use UTM for all of your layers. Grass GIS prefers this






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                Try and use UTM for all of your layers. Grass GIS prefers this






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                Try and use UTM for all of your layers. Grass GIS prefers this







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                answered Sep 17 '18 at 15:07









                LeoLeo

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