Error2 reports
Fix UserCodeException
in Ray
✅ Solution
UserCodeException usually indicates an error originated within the user-provided code executed as a Ray task or actor. To resolve this, carefully examine the traceback provided with the exception, paying close attention to the line numbers and specific error messages within your task/actor's code; implement proper error handling (try-except blocks) within your Ray tasks or actors to catch and manage anticipated exceptions, preventing them from crashing the entire Ray application.
Related Issues
Real GitHub issues where developers encountered this error:
Timeline
First reported:Dec 12, 2025
Last reported:Dec 17, 2025