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Support Article

Unable to launch Pega 7.1.8 interactive installer on CentOS



Unable to launch the Pega 7.1.8 interactive installer program (PRPC_Setup.jar) on CentOS, a Linux operating system.

Error Messages

Exception in thread "main" java.lang.NoClassDefFoundError: Could not initialize class java.awt.Toolkit
at java.awt.Color.<clinit>(

Steps to Reproduce

1. Connect to Linux machine with XTerm.
2. Run "java -jar ML_Setup.jar".

Root Cause

The root cause of this problem is defect/misconfiguration in the operating environment. 


The explanation for this behavior is as follows: Running the interactive installer from Windows resolves the issue. Try the following code to run update from the linux box:


Published August 12, 2015 - Updated October 8, 2020

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