I have been trying to join two fields with id's together. Most of the id's are the same, but some are in one field and not in the other, and the otherway around. I need to join the two fields to see if the geometry of the polygons are different from eachother.

This is what the attribute tables look like. Both BAGid fields are a string field with a length of 15 characters:enter image description here

If I try to join them by the 'BAGid' field value from the processing toolbox, it works fine. But when I try it in the graphical modeler, I get an error message. This is my input from the graphical modeler: enter image description here

This is the error message I receive when trying to run the algorithm. enter image description here

What am I doing wrong?

1 Answer 1


Remove the quotation marks around the field names you hand to the model.

  • That was the problem, thank you very much for helping!
    – Simon
    Commented Dec 15, 2022 at 11:33

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.