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I can't update fields in the Attribute table. I get an error when I select Update All and Update Selected:

An error occurred while evaluating the calculation string: No root node! Parsing failed?

Instead I have to open Field Calculator/Select the field/re-enter the function/and hit OK for the field to be updated in the Attribute table. I can work with this but it's frustrating!

UpdateFieldsError

  • Is upgrading QGIS an option? It's already at 2.16, so you're using a pretty old version. – lynxlynxlynx Aug 29 '16 at 6:32
  • i have had the issue as well in recent 2.18 – William Apr 4 '18 at 12:46

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