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During the converting, some documents failed. (Include PDF and PPT)


We are having this error when trying to convert. Kindly help.

Thank you in advance.

com.perficient.preview.exceptions.PreviewGenerationException: class com.groupdocs.conversion.internal.c.a.s.jI —> class com.groupdocs.conversion.internal.c.a.s.f.aa —> class Error reading pptx presentation: can’t find “/_rels/.rels” entry.


Thank you for your inquiry. In order to investigate this issue at our end, we need following details from you:

  1. Which version of the API you’re evaluating?
  2. Please share problematic files with us.
  3. Sample code you wrote or used for document conversion.