Failed to initialize a channel. Closing: [id: 0x2fb1f028, /113.88.198.30:3982 =
/192.168.3.111:39444]
java.lang.NoClassDefFoundError: Could not initialize class net.minecraft.util.MessageDeserializer

at net.minecraft.network.NetworkSystem$1.initChannel(NetworkSystem.java:89) ~[nd.class:?]
at io.netty.channel.ChannelInitializer.channelRegistered(ChannelInitializer.java:70)
[ChannelInitializer.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRegistered

(DefaultChannelHandlerContext.java:162) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRegistered
(DefaultChannelHandlerContext.java:148) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.ChannelInitializer.channelRegistered(ChannelInitializer.java:73)
[ChannelInitializer.class:?]
at io.netty.channel.DefaultChannelHandlerContext.invokeChannelRegistered

(DefaultChannelHandlerContext.java:162) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelHandlerContext.fireChannelRegistered
(DefaultChannelHandlerContext.java:148) [DefaultChannelHandlerContext.class:?]
at io.netty.channel.DefaultChannelPipeline.fireChannelRegistered(DefaultChannelPipeline.java:730)

[DefaultChannelPipeline.class:?]
at io.netty.channel.AbstractChannel$AbstractUnsafe.register0(AbstractChannel.java:441)
[AbstractChannel$AbstractUnsafe.class:?]
at io.netty.channel.AbstractChannel$AbstractUnsafe.access$100(AbstractChannel.java:373)
[AbstractChannel$AbstractUnsafe.class:?]

at io.netty.channel.AbstractChannel$AbstractUnsafe$1.run(AbstractChannel.java:417)
[AbstractChannel$AbstractUnsafe$1.class:?]
at io.netty.util.concurrent.SingleThreadEventExecutor.runAllTasks
(SingleThreadEventExecutor.java:354) [SingleThreadEventExecutor.class:?]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:348) [NioEventLoop.class:?]

at io.netty.util.concurrent.SingleThreadEventExecutor$2.run(SingleThreadEventExecutor.java:101)
[SingleThreadEventExecutor$2.class:?]
at java.lang.Thread.run(Unknown Source) [?:1.8.0_201]


玩家只要刷新或者进入都会出现这段，这个应该怎么解决？