What are you doing that you experience this popup? Can you show a screenshot of the error for Entry Point Not Found?
The screenshot you've shown is a notification asking you to provide the *.pdb file which "is a proprietary file for storing debugging information about a program."
With that said, you should not need the pdb file for any development purposes. If you believe it is related to a corrupt dll, I would suggest uninstalling and then re-intalling. I am not sure what the other post is referring to "outdated" dlls. Pega Robotics dlls are not transferrable to other versions.