运行时找不到方法错误

Question

I have a project that make a call to a method in another library. When I run locally everything works. Once I deploy to dev server, the method in the other library is not found and causes a runtime error. I have checked the library has property to Copy Local set to true. I checked the version of the file locally and on dev server and they match. The library was added through NuGet and is the most recent version.

Any ideas what would cause the method to not be found after being published?

EDIT: The library is company library on private nuget server

Answer 1

Try JustDecompile or another decompilation tool to check the content of your DLL on the dev system. Maybe (as said before by Biscuits) it's a GAC problem.