无法启动含有forge的1.7.2和1.8，1.7.10却可以启动，一开始以为是Java的问题，换了Java7还是不行。
错误日志：
[15:35:54] [AWT-EventQueue-0/INFO] Start generating launching command...
[15:35:54] [Game Launcher/INFO] Building process
[15:35:54] [Game Launcher/INFO] Logging in...
[15:35:54] [Game Launcher/INFO] Detecting libraries...
[15:35:54] [Game Launcher/ERROR]
---- Hello Minecraft! Crash Report ----
  Version: 2.4.2.63
  Time: 2016-07-10 15:35:54
  Thread: Thread[Game Launcher,6,main]

  Content:
    java.lang.NullPointerException
    at org.jackhuang.hellominecraft.launcher.core.version.MinecraftLibrary.getDownloadInfo(MinecraftLibrary.java:142)
    at org.jackhuang.hellominecraft.launcher.core.download.MinecraftDownloadService.getDownloadLibraries(MinecraftDownloadService.java:60)
    at org.jackhuang.hellominecraft.launcher.core.launch.GameLauncher.makeLaunchCommand(GameLauncher.java:102)
    at org.jackhuang.hellominecraft.launcher.util.HMCLGameLauncher$1.run(HMCLGameLauncher.java:88)


-- System Details --
  Operating System: Windows 7 (amd64), 6.1
  Java Version: 1.8.0_92, Oracle Corporation
  Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation


求帮助！{:10_524:}

hmcl2.4.2版出了大问题，用旧版的
这里下载http://pan.baidu.com/s/1i4ZIkr7

HMCL出问题了，建议换旧版。http://pan.baidu.com/s/1i4ZIkr7
还有一件要做的：
系统盘全盘搜索“.HMCL”文件夹，找到后把文件夹内的jar文件统统删了

我一打开旧版本启动器，它就自动更新到新版的了

用里面的2.3.5.7，不要点击更新

没点更新啊，打开启动器就直接是新版本

蛤？
那你用里面的2.4.0.233吧，我现在用的

把系统盘全盘搜索“.HMCL”文件夹，找到后把文件夹内的jar文件统统删了就没事了，谢谢