Forum Discussion
Invoke Pipeline Failing With Error 2015 – “Value cannot be null. Parameter name: source”
Hello Team,
I am working on a Microsoft Fabric pipeline where the parent pipeline invokes two child pipelines:
Onprem2Raw_PL – Copy source data from MySQL (on-prem) → Fabric Lakehouse Raw
RawFiles2Bronze_PL – Copy Raw → Bronze folder
My issue is: The Invoke Pipeline activity fails, even though everything works individually
What I Verified:
The on-premises data gateway is online
MySQL connection Test Connection = Successful
Copy Data activity in Onprem2Raw_PL → Preview Data works
No parameters added (all hardcoded paths)
Child pipeline runs successfully by itself
Only the parent pipeline fails when invoking the child pipeline
Question:
Why is Fabric reporting that the source = null during Invoke Pipeline execution, even though preview and test connection succeed?
Is this a known metadata issue?
How can I force Fabric to refresh/rebuild the Copy Data source metadata?
Saraswathi_k no so long ago, someone raised this exact same thing, in that case, it was a DB2 connection, here's the discussion Re: Invoke Pipeline fails with Error code 2015: 'V... - Microsoft Fabric Community,
but the error was EXACLTY THE SAME "The child pipeline fails consistently with this error: Fabric activity failed. 'Value cannot be null. Parameter name: source '."
I would recommed two actions ...
#1. Report this to MSFT, I think there's a bug flying around on the new Invoke Pipeline task
#2. Use the legacy Invoke Pipeline and try, on that case, that was the workaround.... the legacy is working fine .
Best of lucks! If you find this info. useful, I would appreciate a thumb-up, and if it fixes your issue, mark as solution for other people facing the same... all the best
3 Replies
Saraswathi_k no so long ago, someone raised this exact same thing, in that case, it was a DB2 connection, here's the discussion Re: Invoke Pipeline fails with Error code 2015: 'V... - Microsoft Fabric Community,
but the error was EXACLTY THE SAME "The child pipeline fails consistently with this error: Fabric activity failed. 'Value cannot be null. Parameter name: source '."
I would recommed two actions ...
#1. Report this to MSFT, I think there's a bug flying around on the new Invoke Pipeline task
#2. Use the legacy Invoke Pipeline and try, on that case, that was the workaround.... the legacy is working fine .
Best of lucks! If you find this info. useful, I would appreciate a thumb-up, and if it fixes your issue, mark as solution for other people facing the same... all the best
Thank you for sharing the link!
I had the same error “Value cannot be null. Parameter name: source”.
After trying your suggestion, I switched to the legacy Invoke Pipeline, and it worked for me as well.So yes — the new Invoke Pipeline activity definitely seems to have a bug.
Thanks a lot for the guidance!
I had the same error “Value cannot be null. Parameter name: source”.
After I switched to the legacy Invoke Pipeline, and it worked for me as well.So yes — the new Invoke Pipeline activity definitely seems to have a bug.
