So,
I installed the new Sierra on my late 2013 iMac 27" and I'm getting this pop up: "macOS needs to repair your library to run applications. Type password to allow this." Putting the password makes the popup just pop up again and if I try to use any apps the whole system freezes or I have to force quit the app...basically I can't do anything with this computer right now! I tried to re-install Sierra, but it didn't help.
In Disc Utility, there is no option for repairing libraries anymore in Sierra so what is the answer to this problem?
