External DLL not working with UIPath

Continuing the discussion from Custome activity not working:

Can you provide some more details? Have you referenced and imported any external nuget packages into your solution that you would like to add to your custom activity package? I think you should get only 1 .dll for your class library project. Other dll should be the dependencies of your package.

Rammohan B.

i am not getting my installed package into my activities?
how can i get it?