Summary: -Open your LoL program files folder. -On Windows 7 it can be found normally under c:\program files\riot games\league of legends\RADS\projects\ lol_air_client\releases\<NUMBER>\deploy\Adobe Air\ -Open the downloaded "Adobe Air SDK" zip file. -Locate your local LoL program files folder (above) >>Rename "versions" folder to "versions_old" in LoL folder path -Copy "versions" from Adobe Air Debug SDK Folder over to the LoL folder path. -Restart your client and (hopefully) the Adobe Air Error will be gone. PLAY!