Could not load type 'System.Activities.TextExpressionBase`1' from.....Error running unattended robots from orchestrator

[supermanPunch (Arpan)]

Hi @anan.deneke ,

I believe we do have some other similar related posts where the discussion was closed with a Conclusion. Could you check and let us know if it helps :

Could not load type 'System.Activities.TextExpressionBase`1' from assembly 'UiPath.Workflow, Version=6.0.0.0, Culture=neutral, PublicKeyToken=null'

If you are using any package which is higher than any available in Enterprise version then it won’t work. Don’t use beta versions in Enterprise versions. If you lower the versions available to match with Enterprise and publish, it will work. Uninstall community version studio and install Enterprise dev studio and link with that Enterprise cloud orchestrator to resolve the issue. Enterprise studio is 2023.4.4.

If it did not help, we would like to ask you about the Studio or Robot Versions used and the Dependency/Package versions used in the process.