java - 如何修复java中的NoSuchMethodError

Question

这个问题已经有答案了:

How do I fix a NoSuchMethodError? (33 个回答)

已关闭 4 年前。

我正在尝试运行 JDA Discord Bot，但收到此错误:

[JDA MainWS-ReadThread] INFO net.dv8tion.jda.core.requests.WebSocketClient - Connected to WebSocket
[JDA MainWS-ReadThread] ERROR net.dv8tion.jda.core.requests.WebSocketClient - There was an error in the WebSocket connection
java.lang.NoSuchMethodError: org.json.JSONArray.iterator()Ljava/util/Iterator;
    at net.dv8tion.jda.core.requests.WebSocketClient.updateTraces(WebSocketClient.java:165)
    at net.dv8tion.jda.core.requests.WebSocketClient.onEvent(WebSocketClient.java:797)
    at net.dv8tion.jda.core.requests.WebSocketClient.handleEvent(WebSocketClient.java:745)
    at net.dv8tion.jda.core.requests.WebSocketClient.onBinaryMessage(WebSocketClient.java:903)
    at com.neovisionaries.ws.client.ListenerManager.callOnBinaryMessage(ListenerManager.java:368)
    at com.neovisionaries.ws.client.ReadingThread.callOnBinaryMessage(ReadingThread.java:270)
    at com.neovisionaries.ws.client.ReadingThread.handleBinaryFrame(ReadingThread.java:990)
    at com.neovisionaries.ws.client.ReadingThread.handleFrame(ReadingThread.java:749)
    at com.neovisionaries.ws.client.ReadingThread.main(ReadingThread.java:108)
    at com.neovisionaries.ws.client.ReadingThread.runMain(ReadingThread.java:64)
    at com.neovisionaries.ws.client.WebSocketThread.run(WebSocketThread.java:45)

我找不到问题所在，

• 这是我的pom.xml : https://hasteb.in/agaseniz.xml
• 我的引用库中也有这些库:http://prntscr.com/nfdquv

我已经在 J​​DA GitHub 上询问过，但他们说我必须获取我已经拥有的最新 org.json。所以我很困惑。

希望有人能帮助我。

Answer 1

事实上，org.json.JSONArray.iterator()从一开始就不存在，但是was added later .

您的pom.xml看起来不错，但是在引用库中有json-simple-1.1.1 .jar 而不是 json-20180813.jar 。

右键单击项目并选择Maven > 更新项目...