2 Comments

wuju boy2/2/2017, 6:09:17 AM2 votes

had the same problem. After re-installing 3 times and getting the same error after accepting the alpha client upgrade I researched how to fix it and It worked on the first try. I basically deleted the leagueclient.exe application in the leagueoflegends folder and then opened lol.launcher.admin. It installed the new client without any issues and no more error.