Forum Discussion

jmdh's avatar
jmdh
Advocate IV
9 years ago

Power BI dataset refresh error: "We cannot convert the value "[Function]" to type Function

I have a number of functions running fine on the Desktop .
I access several Excel files on OneDrive Pro and SharePoint .

Everything works well on the desktop (with Options set to No privacy to allow my Refersh to work well since some tables depend on other tables etc)

When i publish to the service i get this crypticc error messsage:

Power BI dataset refresh error: "We cannot convert the value "[Function]" to type Function.

 

 

Need Help

3 Replies

  • jameslo30's avatar
    jameslo30
    Advocate III
    9 years ago

    Assuming you have a column or measure called "Function", perhaps it's worth removing it and re-adding it again?

     

  • v-sihou-msft's avatar
    v-sihou-msft
    Microsoft Employee
    9 years ago

    jmdh

     

    I can't reproduce your issue.

     

    Since you connect those files in Power BI Desktop and publish the .pbix onto Power BI Service, it supposes take the Personal Gateway. I have seen issues related to data refresh with Personal Gateway when connecting OneDrive or SharePoint.

     

    Can you switch it to On-premise Gateway or directly connect from Power BI Service?

     

    Regards,

    • jmdh's avatar
      jmdh
      Advocate IV
      9 years ago

      Thank you.
      I have just publsihed a detailed analysis under "Bug in a Query that Reffers to an other Query"

       

      My data (stored on OneDrive for Business) is accessed via Get Data > Web (in the desktop) so it does not require a Gateway, provided I edit Credentials after publish.

       

      The issue is due to the fact that my Query calls a Function which itself accesses on of the data sets above.

       

      On the desktop I have the error message:

      Formula.Firewall: Query 'Test Query with Bug' (step 'Rename') references other queries or steps, so it may not directly access a data source. Please rebuild this data combination.

       

      Which I overcome with File>Options > Privacy > Ignore the privacy levels…

       

      But when I publish, edit the Dataset credentials, and try to refresh I have :

      Data source type:

       

      Processing error:

      We cannot convert the value "[Function]" to type Function.

      Cluster URI:

      WABI-NORTH-EUROPE-redirect.analysis.windows.net

       

      (Please note that when I remove the call to the function in my Query, Refresh works fine )

       

      So the Bug comes from this sort of Query in Query thing.

       

      Test files available.