Before somedays some people might have experienced this issue when you are trying to
validate or while submitting, the Xcode just crashes.
However its the problem with the XCode due to wrong programming practice or
not a professional approach from Apple. Apple could have warned the user about what is wrong.
There is a simple solution to this.
To check if you need to, you can go to the preferences -> accounts in XCode, Click “View details” of an account and
attempt to refresh using the little button. Here, XCode will warn you that you need to accept new agreements in the
Member Center before you can refresh.
if ther is any, then you have to go to the Member Center (https://developer.apple.com/devcenter/ios/index.action)
and Accept all agreements.
Double click new provision profiles you downloaded to install them, and then XCode will never crash.
The problem is caused by XCode 6.0 does not handle provision profile migration properly.
Developers should regenerate provision profiles for XCode 6+, but Xcode 6.0 fails to display this error message properly and crashes. (If you use XCode 6.1 Beta, it will display error messages for you, no crash.
Then you will know that the problem is caused by “invalid”==”legacy” provision profile.)
After that try again validating and submitting your app and it should Work successfully.
Thanks for reading this post, if the above solution works, then please rate and comment below.