Keychain "login" cannot be found to store "xxxxxxxxx".
Upgrade from Yosemite to El Capitan. I get this error when I try to login to iCloud settings inside of system preferences. I've tried Keychain first aid, disk permission reset and verify disk in Disk Utility. I've also rebooted and reset PRAM.
I also get an error "This mac can't connect to iCloud because of a problem with "my email @ email.com"
iMac Core i7 + MacBook Air + Dell Latitude i7, + 30" Dell LCD + iPad + iPhone, Mac OS X (10.6.6), 4 Terabytes of external Storage and a 1Tb Time Capsule