Symptoms

K2 Studio fails to start: System.IO.FileLoadException: Could not load file or assembly ''INSTALLDIR]BinSourceCode.Workflow.Interop.dll' or one of its dependencies.
 

Diagnoses

As can be seen in the error, the placeholder for ' INSTALLDIR]' did not get updated in the 'ConfigurationManager.config'.
 

Resolution

The location of this file can be found by opening the 'K2Studio.exe.Config file located in '..K2 blackpearlK2Studio'.

A find and replace of 'fINSTALLDIR]' with the correct path resolved the issue.