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I have a google Layer map on top of which I have added a raster layer of Image and then mapped image coordinates from Google layer.

I made transparent (75%) image map layer and now mapping and creating polygons on top of image layer (Added new shapefile layer) I drew few polygons and then saved it.

When I reopened the file, clicked on toggle editing, I could see my polygons, but I am not able to add/edit/delete existing/new polygons in that shapefile layer. (All icons are disabled)

Is this expected behavior?

My old question on what exactly am I doing. How to create/obtain district data for Singapore?

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  • Have you tried saving and restarting QGIS? When I've had similar errors this can resolve the issue.
    – Phil
    Commented May 20, 2015 at 9:28
  • Yes, I did try that. Did not work
    – Neil
    Commented May 20, 2015 at 9:36
  • Have you checked file permissions for the newly created shapefile? Is it writeable?
    – Phil
    Commented May 20, 2015 at 9:53
  • have you ensured that your shapefile layer is highlighted in the layer list(left side)? I think it might be needed for the editing tools to be active.
    – vinayan
    Commented May 20, 2015 at 9:56
  • I created it. So I should have the write permission. I also updated it to give all permissions to all users. Didnt help
    – Neil
    Commented May 20, 2015 at 9:59

1 Answer 1

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I've tested this on both my laptop (OS X) and my desktop (Ubuntu) but not a Windows box. As @til_b says, the problem seems to be that the .dbf has a different name to the .shp and .shx files.

After renaming the file behaved much better.

I also suggest you dissolve the layer using Vector > Geoprocessing Tools > Dissolve toolset.

After dissolving I was able to add, delete and edit features.

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