Hi @nononame2021 ,
The error message is hard for us to narrow down the issue.
You may run a Process Monitor to check if that we could give any lead.
Also you may check the Event Viewer Logs to see if there is any useful information.
Here is a same issueSSIS package fails with error : The step did not generate any output. The return value was unknown, you could take a reference to it.
Regards,
Zoe
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