Getting error While merging the code in GitHub Repository. Error : System.IO.FileNotFoundException: Could not load file or assembly 'System.Activities.Presentation.Common Version=6.0.0.0 Culture=neutral PublicKeyToken=null' or one of its dependencies

@karthik_M_G,

Try deleting nugget packages from the system and reopen the project which will download again all required correct version packages.

%USERPROFILE%\.nuget\packages

The issue occurs when there are incompatible packages.