如何在java中修复NoSuchMethodError

Question

我试图运行JDA不和谐机器人，但得到了以下错误：

[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)

我找不到出什么问题了

• 这是我的pom.xml：https://hasteb.in/agaseniz.xml
• 此外，我在参考库中有以下库：http://prntscr.com/nfdquv

我已经在JDA GitHub询问过了，但是他们说我必须得到我已经拥有的最新的org.json。所以我很困惑。

希望有人能帮我。

Answer 1

事实上，org.json.JSONArray.iterator()从一开始就不存在，而是后来被添加。

您的pom.xml看起来不错，但是在参考图书馆中使用的是而不是 json-20180813.jar。

-右键单击该项目并选择 Maven > Update .