The type exists in both App_Code and Website.

Question

Hi I have a website open in Visual Studio 2015 which were developed in Visual Studio 2005. I have build it and getting below error- The type &#8216;Log&#8217; exists in both 1_App_code version=0.0.0.0 Culture=neutral PublicKeyToken=null&#8217; and &#8216;WebMail version5.0.0.0 Culture=neutral PublicKeyToken=null&#8217; I am using Log.cs file for logging purpose and file available under App_Code folder. Please suggest. Thanks.

Manas Mohapatra · Answer

Try to clean your solution and then try to rebuild. Visual Studio probably still has reference to the old dll after it created the new dll. or follow below link: http://stackoverflow.com/questions/1757289/where-does-error-cs0433-type-x-already-exists-in-both-a-dll-and-b-dll-come