I'm developing with the 2.2 sdk, and am using a test device that is at 2.2 as well.
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Check author certificates in Preferences > Tizen SDK > Secure Profiles > Profile items
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This certificate is valid, I've recreated it just to make sure, and the only other fix I've seen is to make sure the device time is correct, which it is.
*FIXED
If anyone else has these issues, its because of hidden files and folders. In my case, it was .svn and .DS_Store files. Deleting those recursively through the command line fixes the emulator install.