Class file has wrong version 61.0 should be 59.0 July 8, 2019 16 32 64 128 Class file has wrong version 61.0 should be 56.0 (class file version 60.0) Class file has wrong version 61.0 should be 55.0 Class file has wrong version 63.0 should be 61.0 General error during conversion unsupported class file major version 63
