Vague error message on (scheduled/on demand) dataflow refresh

[olimilo]

I've been getting this error when trying to refresh my dataflows:

There was a problem refreshing your dataflow. {"RootActivityId":"..."}

When I try to save changes to the queries in the dataflow, I get a vague error message saying:

Can't save workflow
Unknown exception

I tried disabling Enhance Compute Engine but I'm getting a Status Code 400 when applying changes.

I've already checked our data for errors and could not locate any. This issue happens both on a dataflow that has a refresh schedule and one that does not.

Has anyone encountered this? This was the only relevant thread I could locate and there doesn't seem to be any clear way of resolving it based on that thread.

https://community.powerbi.com/t5/Service/Dataflows-refresh-errors/m-p/786834

[V-pazhen-msft]

@olimilo ,

Is your workspace V1? If it is V1, this is a known issue that has been submitted internally (ICM#: 258091404)

The solution is to upgrade the workspace from V1 (classic) to V2 (new).

Best Regards,

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

[olimilo]

I did but all my dataflow tables are under Pending Validation status. They're not loading any data when I use them in a dashboard.

[lbendlin]

If you have a Pro license you can raise a Pro ticket with Microsoft at support.powerbi.com