I keep coming across the unknown exception error message when trying to edit or add to a vector layer. Anyone else come across this problem? Any fixes? I'm currently running QGIS 3.4

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  • 3
    Can you please edit your question and add some details about the data you are trying to edit. Thanks!
    – user2856
    Commented Aug 2, 2019 at 11:19

1 Answer 1


Export and save the layer which you want to edit in a different name of course. Now try to edit.

  • Same problem occurs even with the new layer.
    – Sam Letts
    Commented Aug 2, 2019 at 12:19

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