iTunes won't open after updating to 12.3.1
Hi I have OSX 10.11.1 running and I updated my iTunes to 12.3.1. Now all I get is the spinning beach ball when i try to start iTunes. I did a force quit and rebooted but the same thing is happening. I have a huge music library so I thought maybe it was doing some kind of update by after a half hour iTunes is still got the spinning beach ball. Any help would be appreciated.
iMac (27-inch Mid 2011), OS X Yosemite (10.10)