same here, did you find a solution?
No, unfortunately not.
I needed to copy data to another file, and replace the initial connection with a new one. It has possibly to do with a custom SQL statement in the connection to the Excel file, but I'm not sure.
What kind of connection do you have this problem with?
I'm connecting to an Excel file. I added more data to it and got this error when refreshing the extract. I re-created the connection (and all the calculated fields) and replace it.
Johan and Gabriel: I just encountered the exact same error with a .xls file. It came up out of nowhere. I will add that I noticed one of my measures was renamed to "Calculation_6181102151905840" which suggests something got damaged in the .tde.
Did either of you ever get a response from Tableau on this?