我的mavenning安装netty-socketio-演示有什么问题？

Question

我从github.com下载netty-socketio演示，我不能mvn install服务器，我得到的错误如下

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile) on project demo: Compilation failure: Compilation failure:
[ERROR] C:\Users\sun\git\netty-socketio-demo\server\src\main\java\com\corundumstudio\socketio\demo\NamespaceChatLauncher.java:[20,55] error: cannot find symbol
[ERROR] symbol:   method sendJsonObject(ChatObject)
[ERROR] location: class BroadcastOperations
[ERROR] C:\Users\sun\git\netty-socketio-demo\server\src\main\java\com\corundumstudio\socketio\demo\NamespaceChatLauncher.java:[16,22] error: cannot find symbol
[ERROR] symbol:   method addJsonObjectListener(Class<ChatObject>,<anonymous DataListener<ChatObject>>)
[ERROR] location: variable chat1namespace which type is SocketIONamespace 
[ERROR] C:\Users\sun\git\netty-socketio-demo\server\src\main\java\com\corundumstudio\socketio\demo\NamespaceChatLauncher.java:[29,55] error: cannot find symbol
[ERROR] :   METHOD sendJsonObject(ChatObject)
[ERROR] LOCATION: CLASS BroadcastOperations
[ERROR] C:\Users\sun\git\netty-socketio-demo\server\src\main\java\com\corundumstudio\socketio\demo\NamespaceChatLauncher.java:[25,22] error: cannot find symbol
[ERROR] -> [Help 1]

我在mvn存储库中找到了依赖项。我使用命令mvn clean install。谢谢你的帮助。

Answer 1

更改pom.xml文件夹的server：

<dependency>
   <groupId>com.corundumstudio.socketio</groupId>
   <artifactId>netty-socketio</artifactId>
   <version>1.7.1</version>
</dependency>

至：

<dependency>
   <groupId>com.corundumstudio.socketio</groupId>
   <artifactId>netty-socketio</artifactId>
   <version>1.6.5</version>
</dependency>

并重新运行maven