When you deploy a shared project by using Visual Studio 2012 while deploying a Microsoft BizTalk Server solution, you may receive the following error message:
error DEPLOY: Failed to add resource(s). Change requests failed for some resources. BizTalkAssemblyResourceManager failed to complete end type change request. Object reference not set to an instance of an object.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.