We are trying to upgrade Process Automation from 4.2 SP1 to 4.3 SP1 but the installer stops at this error: An error Occurred: java.io.EOFException: Unexpected end of ZLIB input stream Error Log: C:\Users\user\AppData\Local\Temp\Install4Error323.log

Document ID : KB000004708
Last Modified Date : 14/02/2018
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Issue:

We are trying to upgrade Process Automation from 4.2 SP1 to 4.3 SP1 but the installer stops with below error:

 An error Occurred: java.io.EOFException: Unexpected end of ZLIB input stream

 Error Log: C:\Users\user\AppData\Local\Temp\Install4Error3868170969606122553.log

 

PA_Upgrade_Err.png

Cause:

This error can be seen due to various reasons however following has been identified as the major reason.

 

Process Automation media being used for the install is either incomplete or got corrupted during extract.

 

 

 

 

Resolution:

Download the Process Automation media again from support site and copy it to the PAM server locally then run the installer.

Additional Information:

Note:1. Make sure the user performing the install is added to local administrators group

        2. If possible stop anti-virus service until install is complete