java.lang.UnsupportedOperationException: Cannot build a Message with no content. (You never added any content to the message)

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Root Cause Analysis

  1. java.lang.UnsupportedOperationException

    Cannot build a Message with no content. (You never added any content to the message)

    at net.dv8tion.jda.MessageBuilder.build()
  2. net.dv8tion.jda
    TextChannelImpl.sendMessage
    1. net.dv8tion.jda.MessageBuilder.build(MessageBuilder.java:173)
    2. net.dv8tion.jda.entities.impl.TextChannelImpl.sendMessage(TextChannelImpl.java:144)
    2 frames
  3. io.github.lxgaming
    MessageListener.onMessageReceived
    1. io.github.lxgaming.discordbot.commands.BotCommand.bot(BotCommand.java:11)
    2. io.github.lxgaming.discordbot.listeners.MessageListener.onMessageReceived(MessageListener.java:33)
    2 frames
  4. net.dv8tion.jda
    WebSocketClient.onTextMessage
    1. net.dv8tion.jda.hooks.ListenerAdapter.onEvent(ListenerAdapter.java:176)
    2. net.dv8tion.jda.hooks.InterfacedEventManager.handle(InterfacedEventManager.java:57)
    3. net.dv8tion.jda.handle.MessageReceivedHandler.handleInternally(MessageReceivedHandler.java:65)
    4. net.dv8tion.jda.handle.SocketHandler.handle(SocketHandler.java:36)
    5. net.dv8tion.jda.requests.WebSocketClient.handleEvent(WebSocketClient.java:545)
    6. net.dv8tion.jda.requests.WebSocketClient.onTextMessage(WebSocketClient.java:296)
    6 frames
  5. com.neovisionaries.ws
    ReadingThread.run
    1. com.neovisionaries.ws.client.ListenerManager.callOnTextMessage(ListenerManager.java:352)
    2. com.neovisionaries.ws.client.ReadingThread.callOnTextMessage(ReadingThread.java:261)
    3. com.neovisionaries.ws.client.ReadingThread.callOnTextMessage(ReadingThread.java:239)
    4. com.neovisionaries.ws.client.ReadingThread.handleTextFrame(ReadingThread.java:946)
    5. com.neovisionaries.ws.client.ReadingThread.handleFrame(ReadingThread.java:729)
    6. com.neovisionaries.ws.client.ReadingThread.main(ReadingThread.java:109)
    7. com.neovisionaries.ws.client.ReadingThread.run(ReadingThread.java:65)
    7 frames