[FIX] Client Won't Open on Mac, pop's up for second then closes.

FreshlyFinessed·3/14/2015, 2:34:42 AM·6 votes·14,925 views

While I was playing a custom game my client crashed, when I tried to re-open it the client would attempt to open but fail without an error message or even opening a shell for the client. I was on PBE client when this happened; however, this effected bothy regular and PBE client.

To fix this problem: Re-download the .dmg file directly from riot's website. Copy the League of Legends.app out of the .dmg file into your applications (don't delete old .app, keep both). Right click League of Legends 2.app and click show package contents. Go to contents > LoL > RADS > System. Copy UserKernal.app. Replace the UserKernal.app in the same directory of your broken League of Legends.app. Your client should now open properly!

Good Luck and see you on the rift! -Havok

14 Comments

inposibrew6/18/2015, 12:59:50 AM3 votes

this did not work for me i tried to reinstall the client. first time installing on this mac when i click the app to open it the lol icon pops up then disappears and nothing happens.

InkFrost12/20/2015, 2:00:36 AM2 votes

I have had the same problem, and I have tried reinstalling several times. At this point League wont even open on my Mac, the Launcher Just bounces on my doc for a few seconds and disappears.