日志
Minecraft崩溃了！请认真阅读建议。
可能是Mod或其他问题。
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
        at java.lang.reflect.Method.invoke(Unknown Source)
        at org.jackhuang.hellominecraft.launcher.Launcher.main(Launcher.java:114)
Caused by: cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException
        at cpw.mods.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:25)
        at java.lang.SecurityManager.checkExit(Unknown Source)
        at java.lang.Runtime.exit(Unknown Source)
        at java.lang.System.exit(Unknown Source)
        at net.minecraft.launchwrapper.Launch.launch(Launch.java:138)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
        ... 5 more

*** Game Exited ***
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 5
    at cpw.mods.fml.relauncher.FMLSecurityManager.checkPermission(FMLSecurityManager.java:21)
    at java.lang.SecurityManager.checkExit(Unknown Source)
    at java.lang.Runtime.exit(Unknown Source)
    at java.lang.System.exit(Unknown Source)
    at org.jackhuang.hellominecraft.launcher.Launcher.main(Launcher.java:131)

Caused by: cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException
你发这个干甚，这个错误来源是上一个严重错误导致游戏执行退出操作，但是执行失败，于是重新抛出这个异常以退出进程。你最好是把fml-client-latest.log发一下。

只有这个

你确定？cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException都出了，表明LaunchWrapper已经把Forge启动了，这是必定存在由ForgeModLoader生成的日志fml-client-latest.log（除非是你卡了）。请使用Windows资源管理器自带搜索功能去搜这个文件，搜不到的话换启动器。

这个吗
[20:28:56][main/INFO] Initialized settings.
[20:28:57][UpdateChecker/WARN] Failed to get update url.
java.net.UnknownHostException: huangyuhui.duapp.com
    at java.net.AbstractPlainSocketImpl.connect(Unknown Source)
    at java.net.PlainSocketImpl.connect(Unknown Source)
    at java.net.SocksSocketImpl.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at java.net.Socket.connect(Unknown Source)
    at sun.net.NetworkClient.doConnect(Unknown Source)
    at sun.net.www.http.HttpClient.openServer(Unknown Source)
    at sun.net.www.http.HttpClient.openServer(Unknown Source)
    at sun.net.www.http.HttpClient.<init>(Unknown Source)
    at sun.net.www.http.HttpClient.New(Unknown Source)
    at sun.net.www.http.HttpClient.New(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.plainConnect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.connect(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection.getInputStream(Unknown Source)
    at org.jackhuang.hellominecraft.utils.NetUtils.doGet(NetUtils.java:66)
    at org.jackhuang.hellominecraft.utils.NetUtils.doGet(NetUtils.java:70)
    at org.jackhuang.hellominecraft.utils.UpdateChecker.run(UpdateChecker.java:50)

本帖最后由 ItIsEnderman 于 2019-9-12 20:49 编辑

warn级别的一般不会导致崩溃。一般来说出现cpw.mods.fml.relauncher.FMLSecurityManager$ExitTrappedException之前又一个error级别的Unable to launch，这个是无法处理的严重异常被LaunchWrapper捕获后出现的一行记录，下方则是真正应该看的错误信息。根据Unable to launch这一行，你应该会知道你要发的文件在哪里。