Dataflow gen2 can't connect dataflow gen2

Hi fabconmvp,

Just to double check, you are trying to use an existing dataflow (gen2) as a source in the get data option of the new dataflow (gen2), correct?

Afaik that should be supported and I don't see that listed as a limitation:

https://learn.microsoft.com/en-us/power-query/connectors/dataflows

Can you share the power query M code you used for the connection/to retrieve the data from the first gen2 dataflow? Would be good to inspect that and see what is happening in your case.

Thanks for the reply from Expiscornovus , please allow me to provide another insight: 
Hi  fabconmvp ,

You can check out the following link with the same error message and I hope the solution in it helps you:

Solved: Error in Power BI: "Column 'cachedEntity' not foun... - Microsoft Fabric Community

Solved: cachedEntity - Microsoft Fabric Community

Best Regards,

Liu Yang

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