• I open the Minecraft Launcher
• Press Play
• My multiplayer maps dont work and says a message "Error: java.lang.IllegalStateException: failed to create a child event loop"
• I also go to single player
• I create a new world
• loads up the % to 100%
• Says saves world and the game crashes
• It then comes up with ERROR Game Crashed and then the message... 
• The game crashed whilst mouseclicked event handler
  Error: java.lang.IllegalStateException: failed to create a child event loop

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I literally bought the game yesterday and havent played it much. I dont know the issue and spent a few hours trying to fix it with no help at all. JUST WANT TO PLAY.