If i check the capability \"Shared Used Certificates\" in the Windows Phone 8.1 application manifest i get the following error:
Error : DEP0001 : Unex
I can confirm that VS 2013 Update 4 causes the error:
Error : DEP0001 : Unexpected Error: Package could not be registered. (Exception from HRESULT: 0x80073CF6)
My application was deploying to the phone fine before the update, and started failing immediately after the update. Modifying settings:
Settings/Storage Sense/Store New apps on my: phone
Solved the problem. Thanks Matt for the tip, saved me alot of time.