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J
我按照操作示例，修改了config.json文件，但是升级不到2.15.0-RC升级到的是2.15.0-M1，fix-protocol-version V1.8.0版本，打开mcl就提示“ W/fix-protocol-version: 注册服务失败，请在 2.15.0-dev-98 或更高版本下运行”，所以我要怎么升级到RC版