Workflow Failed to Start

[mwhelo]

I have a number of workflows on a document library, one of which converts .docx documents into .pdf files. When this happens one of my other workflows which runs when new items are created runs on this .pdf file and returns the following error:

Can anyone advise on why this keeps happening? Users are getting spammed with error emails because of this.

[lakshminarayana · Accepted solution]

This error message is generalized one, it is difficult to trace the error where the workflow has failed.

Run the workflow on one particular pdf file and keep removing workflow actions one by one and find out exactly

at what action it is failing.