This hints that launcher simply cannot find client's app.įew lines above this one we can see what path launcher is looking for: 000764.940| OKAY| lol-gameflow| Game launch working directory: /Applications/League of Legends.app/Contents/LoL/RADS/solutions/lol_game_client_sln/releases/0.0.1.49/deploy/Ġ00764.940| OKAY| lol-gameflow| Game client launch exe path: /Applications/League of Legends.app/Contents/LoL/RADS/solutions/lol_game_client_sln/releases/0.0.1.49/deploy/LeagueOfLegends.app/Contents/MacOS/LeagueofLegends Looking into client logs we can find: 000764.943| ERROR| lol-gameflow| processSpawn failed:: No such file or directoryĠ00764.943| ERROR| lol-gameflow| Failed to launch the game client: processSpawn failed:: No such file or directoryĠ00764.943| ERROR| lol-gameflow| Failed to launch reconnect: processSpawn failed:: No such file or directory Turns out it's an issue with Apple's new APFS file system which changes handling of some filenames. However, real file name should be changed

As mentioned before, Finder doesn't display file's real name so after renaming it will still display the old name.

Remove all spaces from the name so it looks like LeagueOfLegends and press Return.

Right click League Of Legends and choose Rename.

Open directory with most recent release.

Type /Applications/League of Legends.app/Contents/LoL/RADS/solutions/lol_game_client_sln/releases/.

Run mv LeagueofLegends.app LeagueOfLegends.app.

Navigate to release's content: cd 0.0.1.49/deploy/.

At this point you need to list this directory's content to find most recent release number with ls.

Browse to League contents with cd /Applications/League of Legends.app/Contents/LoL/RADS/solutions/lol_game_client_sln/releases/.

Note that League patcher will probably install updates under old filename so it's possible that these steps will need to be taken after every patch until Riot fixes it.

Terminal method is probably more reliable as you can see real file names within terminal opposite to Finder which 'beautifies' them so you can't be sure what the actual file name is. After fresh install of League of Legends on macOS with case-sensitive APFS volume it's not possible to start League of Legends game, after champion selection the launcher won't open the game client and is stuck with reconnect button.

League launcher not opening