Training failed
Understand failed training and what to try next.
Symptom#
Training stops and the bot does not become READY. The bot detail page may show "Last error: ".
Cause#
Training can fail while preparing documents, parsing files, embedding chunks, or committing the result.
Fix#
Read the last error
The bot detail page shows the most recent training failure if one is available.
Check document types
Use PDF, DOCX, MD, or TXT. Remove unsupported or corrupted files.Try a smaller batch
Remove the largest/newest file and train again to isolate the problem.Retry
Click Train Bot. Pegasus retries transient failures automatically, but manual retry helps after you change files.
If it keeps failing#
Contact support with the bot name, document names, and the visible last error.