MSP: 'An error occurred while opening CA PPM project'
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MSP: 'An error occurred while opening CA PPM project'


Article ID: 259071


Updated On:


Clarity PPM On Premise


After deploying the Clarity MSP Connector, an error is received trying to launch:

Error: Target: System.Object ForwardCallToInvokeMember(System.String, System.Reflection.BindingsFlags, System.Object, Int32[], System.Runtime.Remoting.Proxies.MessageData byRef) Error: Projec cannot open the file ...


"An error occurred while opening CA PPM Project in Microsoft Project. Please try again."


Release : 16.0.3


The problem may be due to a bad install, or if an install package is being used, a bad package.

The install documentation is located here:

MSP: Install and Configure the Microsoft Project Interface (

Please ensure all steps are completed as documented.

If a clean uninstall is needed, please refer to this document:

Clean uninstall of the MSP interface (


If using a package to deploy the install, also ensure that performing a basic install without the package works or not.