1 Reply Latest reply on Jan 25, 2019 9:40 AM by Ken Flerlage

    No such function isnull that takes arguments of type (str).

    Rich Lucas

      I am trying to edit the data connection and when I click to edit I get the error "An error occured while communicating with the datasource. No such function isnull that takes arguments of type (str)." 

       

      In the metadata I don't see any calculations with "isnull" being used, however I do not know what the data source consists of since I have replaced the existing Tableau analyst position at my company and was built by the old analyst.  Any idea how I can fix this so I can edit the data source?