Need System.Activities.dll To Create Custom Activity

News Knowledge Base
1

Where to find the reference System.Activities when creating a Custom Activity ?

Resolution: The System.Activities.dll can be found in the .NETFramework folder,

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\<Framework version>

Additionally, check if the Dll is found in the below 2 locations as well:

  • C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.Activities
  • C:\Windows\Microsoft.NET\Framework\<Framework version>

If the System.Activities.dll is still missing, try repairing or reinstalling .NET.

Use the Microsoft .NET Framework Repair Tool to repair all installed versions of .Net Framework.