Cannot create a New DataFlow Gen2

[ManishBundhun]

Hello,

I am trying to create a New DataFlow Gen2 and it does not occur. I get the following error: "Unhandled HTTP Request Exception. Status Code: 400. Reason: undefined. Response Text: "ExternalServiceError"."

"ApiResponseError: Unhandled HTTP Request Exception. Status Code: 400. Reason: undefined. Response Text: "ExternalServiceError".
at p.handleLoadEvent (https://europe.prod.powerquery.microsoft.com/MashupEditor/scripts/p.h.a.f560c1a901069d71f9e2.bundle....)
at XMLHttpRequest.<anonymous> (https://europe.prod.powerquery.microsoft.com/MashupEditor/scripts/p.h.a.f560c1a901069d71f9e2.bundle....)".

This happens after I try to create it in a lakehouse in my workspace.

Does anyone know how to deal with this?

Thanks

[v-yetao1-msft]

Hi @ManishBundhun 

So you created a dataflow via lakehouse ? Can you describe your procedure in detail?

Best Regards,
Community Support Team _ Ailsa Tao

[PaulHales]

I have the same issue. 

1. Go into Power BI (https://app.powerbi.com/)
2. Select a Fabric Capacity workspace
3. Select Data Factory from lower Left Cnr 
4. Select Dataflow Gen 2
5. try sourcing data ... eg Import from Excel, Import from SQL Server,  Import from csv/file etc...

Immediate outcome is below flicking error dialog that doesnt stop, cant do anything other than close the browser window to kill the session and restart.

[Pieter_NL]

same issue, anyone found a solution yet?