[09:00:47] [AWT-EventQueue-0/INFO] Start generating launching command...
[09:00:48] [Game Launcher/INFO] Building process
[09:00:48] [Game Launcher/INFO] Logging in...
[09:00:48] [Game Launcher/INFO] Detecting libraries...
[09:00:48] [Game Launcher/ERROR]
---- Hello Minecraft! Crash Report ----
  Version: 2.4.2.63
  Time: 2016-07-06 09:00:48
  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 (x86), 6.1
  Java Version: 1.8.0_71, Oracle Corporation
  Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation

然而什么都看不懂，重新下个整合包不就好了

然而萌新根本就看不懂这到底是什么