How to fix “namespace x already contains a definition for x” error? Happened after converting to VS2010

Question

Specifically the error occurs in the Resources.Designer.cs:

Error 2 The namespace \'ModulusFE\' already contains a definition for \'Sto

Answer 1

if you have 2 versions of any of your code file (*.cs, *.vb etc.) inside your "app_code" folder then you will get this error because dot net would include both the files in your project and will get 2 different implementations of the same class (because of same name in 2 versions of same code file in app_code folder)