After you install Cumulative Update 3 for Microsoft BizTalk Server 2013, you receive the following error message when you try to redeploy a map from Microsoft Visual Studio:
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.
Cumulative update information
The fix that resolves this issue is included in Cumulative Update 4 for BizTalk Server 2013.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Learn about service pack and cumulative update list for BizTalk Server.
Learn about BizTalk Server hotfixes and cumulative update support.