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Frequent Visitor

'AttributeCollection' contains non-unique item names.

Hi everyone there


I would be grateful if anyone could give me some guidance on the error below when trying to map Data Flow to create a new table:




Thank you very much

Dual Super User
Dual Super User



Can you check the attributes/columns on your entity/table as the error suggests there should be 2 attributes with the same name...

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Frequent Visitor

Thank you @Mira_Ghaly 

Yes this was checked before I posted. The table has only 7 rows with 2 attributes. No repetitions in any of them.


Thank you for your time.


Kind regards

Frequent Visitor

@malditoponi  did you ever get a response to this? I am having a similar issue 😞

hi @msaenzpe I never got a reply but I've been told I was unable to use Dataflow due to licence permissions 😞 so I moved on to producing the data within powerapps.

I solved this checking imported columns: One was column 'Id', another column 'ID' with the same values. Removing column 'ID' solved the error... 

Thanks a lot, you saved my day 😉

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