UiPath errors / Version
RemoteException: Could not load file or assembly '{ProjectName}'. The system cannot find the file specified
Cause
The Robot machine runs an older UiPath version than the one used to publish, so it cannot resolve the project assembly or its dependencies from the NuGet cache.
Fix
Upgrade the Robot/Assistant to the same version used in Studio. Clear the Robot's NuGet cache (C:\Users\<account>\.nuget\packages) and re-trigger so dependencies re-download. If the package relies on custom libraries, ensure those .nupkg are in the Orchestrator feed. Confirm the process version points to the correct package.
Part of the Automation Error Index — UiPath errors: browse all.
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