Support Article

The selected archive is invalid or of an unknown type



Installing a hotfix fails with the error message below.

Error Messages

•pyArchiveType:The selected archive is invalid or of an unknown type. Please validate archive type or select another file to import.

Steps to Reproduce

Attempt to install a hotfix via Designer Studio's Update Manager.

Root Cause

A defect or configuration issue in the operating environment. The latest CATALOG.ZIP file was not present on the user's system.


Perform the following steps:
  1. Click Designer Studio > System > Tools > Update Manager > System Scanner.
  2. Click the Refresh icon to automatically update to the latest CATALOG.ZIP file from Pega.
  3. If step 2 doesn't work, then download the latest CATALOG.ZIP file by following the instructions provided in and then upload CATALOG.ZIP file to the System Scanner.

Published June 2, 2017 - Updated July 28, 2017

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