Codesign: What are unsealed contents?

Question

I have just upgraded to XCode 6 and tried to build my Developer ID signed Mac app. However, I now get the following codesign error:

unsealed contents present         


        

Answer 1

Have a look at OS X Code Signing In Depth

Beginning with OS X version 10.9.5, there will be changes in how OS X recognizes signed apps

Structure your bundle according to the expectations for OS X version 10.9 or later:

• Only include signed code in directories that should contain signed code.
• Only include resources in directories that should contain
  resources.
• Do not use the --resource-rules flag or ResourceRules.plist. They have been obsoleted and will be rejected.