After installing Mekorma I am receiving errors

You have installed Mekorma and now getting one or more of the below errors:
 
Dexterity Runtime:
Unhandled Object Exception: Invalid Class String
EXCEPTION_CLASS_OBJECT_EXCEPTION
 
MPRK Failed to Initialize
 
Error Invoking SetCredentials() of Form ME_VisualStudio
 
Past resolutions:
1. Re-Run the Mekorma Installer .exe and choose ‘Run as Administrator’ option to launch
 
2. Ensure users do not have special characters in their GP login password