“LeagueClient” is damaged and can’t be opened.

NewAccWhoThis·8/17/2019, 2:24:33 PM·2 votes·1,974 views

Have not been able to open the league of legends app on mac. Running Mojave 10.14.5. Plainly refuses to open. Have tried all suggested solutions and using the helper tool to no avail. Apperently the hierachy has changed since the 'show packet contets' has changed but going to the client I think I found the culprit: the riotclient exec file. It will give this message on opeing: "“LeagueClient” is damaged and can’t be opened. You should move it to the Trash." Bug has persisted for over a month now.

2 Comments

RiotRiot ApeRoll8/20/2019, 10:19:24 PM3 votes

Hi there! Sorry to hear about this :(

Do you mind sharing a few details to help us investigate?

Did League work for you before or did this just start occurring on a new Mac with a fresh installation of League?
Are you on the new Riot Client? (Looks like this) https://imgur.com/a/hWZm2ck

Also - not an official answer but I've seen other similar threads with this issue saying that renaming your leagueclient and reopening it solves this issue. I'm not sure why this would be the case but would love more information to see if we can come up with an actual solution :) Thanks!

Whulf10/15/2019, 3:39:31 AM1 votes

Not sure if its a good idea or not but I ran "sudo xattr -cr /Applications/League\ of\ Legends.app/" in the terminal on my Mac. It let me run the game. I believe what's going on is that for whatever reason the application as some attribute flagging it as broken

according to ( http://osxdaily.com/2019/02/13/fix-app-damaged-cant-be-opened-trash-error-mac/ ):

"The -c flag removes all attributes, whereas -r applies recursively for the entire targeted .app directory contents. The xattr command can also be used to remove the ‘application downloaded from the internet’ error message on the Mac too."