Can't open project from PPM into MSP receive error Compile error Variable not defined

Document ID : KB000118753
Last Modified Date : 31/10/2018
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Cannot connect from PPM to MSP and vice versa after upgrading to CA PPM v15.5.

1. Go to a project in CA PPM

2. Click on 'Open in Scheduler' and select 'MSP read-write'

Expected Result: For the project to open successfully in MSP

Actual Result: Project doesn't open in MSP, receive this error: “Compile error: Variable not defined”
CA PPM v15.5
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