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Save as PDF displays error: "Could not load file or assembly, Version="

This article was created in response to a support issue logged with K2. The content may include typographical errors and may be revised at any time without notice. This article is not considered official documentation for K2 software and is provided "as is" with no warranties.


When trying to save a PDF the following error is displayed:

'Could not load file or assembly, Version='


After investigating it was found the Fix Pack was applied before the Cumulative update, which is not the correct procedure. 

Always apply the Cumalative Update before applying the latest following Fix Pack.

This error can also occur if a Repair is run; and the Cumulative Update and Fix pack is not applied again.


To resolve this error you have to reapply the Cumulative Update first, then apply the Fix Pack.

 Please note the following article if there is an issue with the rendering of the PDF: https://help.k2.com/kb001626.aspx