System.TypeLoadException: Method 'get_xxx' does not have an implementation

Question

There are a lot of questions floating around with this problem and i\'ve worked through them ll with no joy.

I am receiving this error:

Method

Answer 1

There can be many reasons for this, all the previous answers represent a case of this problem.

What I suggest doing is:
while your program is running open Resource Monitor -> CPU tab and in the search handles input box, search for the assembly that supposedly doesn't implement that method.

In the search results you'll see the path of your assembly, and most likely the path that you see isn't the one that you expect.
Delete the assembly from this unexpected path so that the correct assembly gets loaded.