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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.run(Unknown Source) at java.lang.Thread.run(Unknown Source)