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I also had the "duplicate column" error. The problem was that the landuse data base needed to be upgraded from version 3 to 4 using the command spatialite_convert -v 4 -d land_use.db This requires the spatialite-tools package to be installed.


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This is really a programming question rather than a GIS one but two things spring to mind. The main issue is your path. On Windows I don't think Python will find any path in the form "Desktop\etc\etc". Unlike unix, you must specify a drive and there can also be many desktops (one for each account plus a global one). They are all usually found in a ...


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I suggest to update qgis (first of all) at least at 2.4 version. Scale of 50:1 is a non sense... its bigger than reality. Topology have a tollerance so I don't think this could be a problem for you. Can you measure the distance of the two points? how much is it? For being sure that the two vertex are snapped (in qgis), just anable the topologycal editing ...


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The "No data available" errors are usually provoked by a user accessing the map from an internet connection which is behind a proxy/firewall. In this case, I recommend you to access your map through HTTPS instead of HTTP, so when you share the URL for your map make sure to include https at the beginning. For example: ...


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I confirmed that current "master" branch encountered above error. If possible, could you use "develop" branch? You can download "develop" branch as ZIP file from https://github.com/pgRouting/pgrouting/archive/develop.zip


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Some things to look in to Check that your SDE DB connection is using the GISADMIN credentials. Check that your Geometric Network was added to the SDE DB using the GISADMIN account.


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The only way i found for it to work is to remove the raster data. Save it. Make the changes you want. Save it. Than add the raster data back and save it again. I know this sounds like a hassle but this is the only way i know for it to work. I am sure there is an easier way i just don't know what it is.


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Problem solved. I closed the program restarted my computer and deleted these stange tables with the "existing lock". Everything is working fine.



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