Niagara R2 Workplace Pro Fails to Start – ZipException Error During Unjar Process

[Product_Support]

Issue

When attempting to run Workplace Pro on a Niagara R2 computer, the following error appears in the Niagara Console:

*** Unjar: c:\niagara\r2.301.522\nre\modules\demo.unjar  
java.util.zip.ZipException

Product Line

TAC IA Series

Environment

Niagara R2 Workplace Pro

Cause

.unjar files, which are normally used by the Niagara installer during installation, have been incorrectly copied into the modules directory on the computer.

Resolution

• Stop the Niagara Service on the computer.
• Navigate to the directory:

  c:\niagara\r2.301.522\nre\modules\
  

• Delete all .unjar files in this directory.
• Restart the Niagara Service.
• Launch Workplace Pro – it should now function correctly.