Entry point not found

Hello everyone, Today I encountered an error for the first time The error said The procedure entry point packman could not be located in the dynamic link library D:\games\League of Legends\RADS\ solutions\ lol_game_client_sln\0.0.1.227\deploy\ League of Legends.exe

I found a previous discussion and it said something like to open one of the 0.0.1 something and launch the client but It didnt help and it gave me another error that I miss zlib.dll or similar. :) I hope someone knows how to fix it and have a nice day everyone. :)