"Can't save dataflow. Operation could not complete because a newer version of this dataflow was..."

[DickMcMullen]

Cannot save query as a dataflow that executes successfully in the desktop.  This query and the function it calls combines several CSVs from a SharePoint store into one dataset containing roughly 800K rows.  The query editor croaks with this error:  Can't save dataflow. Operation could not complete because a newer version of this dataflow was saved since you started editing.

[mlong]

I just ran into this issue and am now stuck in dataflow purgatory where I can't get linked sources to refresh or edit a dataflow to remove the linked source.

[StephenF]

Anyone get to the bottom of this - I'm getting this with an "unknown exception".

[bak7]

i have the same issue. did anyone solved it somehow?

[DickMcMullen · Accepted solution]

Resolved.  I am happy to report that this issue disappeared this morning with no changes to the query.  All is well. 

[AliceW]

I have this issue too... Alas, if I close the dataflow, all my work goes down the drain...

[jmlasuncion]

The same happens to me