Error when viewing PDF file – “documentType parameter for the config object is invalid”

ℹ️ Support
1

I am facing an issue when trying to open/view a PDF file in OnlyOffice within Nextcloud.

Instead of opening the file, I get the following error in an alert box:
The “documentType” parameter for the config object is invalid. Please correct it.
Steps to Reproduce:

  1. Log in to Nextcloud.
  2. Navigate to any folder with a PDF file.
  3. Attempt to open the PDF file with OnlyOffice.
  4. Error alert is displayed.

Expected Result:
The PDF file should open in the OnlyOffice viewer/editor without any error.

Actual Result:
An alert appears with the error:
The “documentType” parameter for the config object is invalid.

Environment Details:

  • Nextcloud version: Nextcloud Hub 10 (32.0.0 dev)
  • OnlyOffice app version: Version 9.10.0
  • PHP version: 8.0
  • Browser: Chrome

Additional Notes:

  • This issue occurs only with PDF files. Other formats (DOCX, XLSX, PPTX) seem to work fine.
2

Please check your browser console as described in the support template.

Note this may simply be happening because you appear to be testing on an early beta of v32.

3

Hi,

Thank you for your response.

I re-tested as you asked: the browser console shows no errors, just the alert:

The “documentType” parameter for the config object is invalid. Please correct it.

Confirming: I am currently running Nextcloud Hub 10 (32.0.0 dev).
ONLYOFFICE connector: Version 9.10.0
DocumentServer: Version 0.2.0

This only happens for PDFs. DOCX/XLSX/PPTX open fine.

Thank you.

4

The OO Connector is not yet released for Nextcloud Server v32 (which itself is not yet released outside of early betas). I presume you force enabled it.

The OnlyOffice folks know about some of the issues based on what I see in GitHub. Based on a quick look I would expect problems trying to use it with the early betas of v32 for now.

There are likely errors in your server-side log (which can be checked by following the instructions in the support template).