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java.lang.NoClassDefFoundError: Let/Analyzer;	at java.lang.Class.getDeclaredFields0(Native Method)	at java.lang.Class.privateGetDeclaredFields(Unknown Source)	at java.lang.Class.getDeclaredFields(Unknown Source)	at robocode.peer.RobotPeer.cleanupStaticFields(Unknown Source)	at robocode.battle.Battle.cleanup(Unknown Source)	at robocode.battle.Battle.stop(Unknown Source)	at robocode.battle.Battle.stop(Unknown Source)	at robocode.manager.BattleManager.startNewBattle(Unknown Source)	at robocode.manager.BattleManager.startNewBattle(Unknown Source)	at robocode.dialog.NewBattleDialog$1.run(Unknown Source)	at java.lang.Thread.run(Unknown Source)