新下载的1.13无法使用，以下错误报告：
[11:35:35] [AWT-EventQueue-0/INFO] Start generating launching command...
[11:35:39] [Game Launcher/INFO] Building process
[11:35:39] [Game Launcher/INFO] Logging in...
[11:35:40] [Game Launcher/INFO] Detecting libraries...
[11:35:40] [Game Launcher/INFO] Unpacking natives...
[11:35:48] [Game Launcher/INFO] *** Make shell command ***
[11:35:48] [Game Launcher/INFO] On making head command.
[11:35:48] [Game Launcher/INFO] Java Version: 1.8.0_171
[11:35:48] [Game Launcher/INFO] Java Platform: 32
[11:35:48] [Game Launcher/INFO] System Platform: 32
[11:35:48] [Game Launcher/INFO] System Physical Memory: 12197
[11:35:48] [Game Launcher/ERROR]
---- Hello Minecraft! Crash Report ----
  Version: 2.4.1.6
  Time: 2018-07-29 11:35:48
  Thread: Thread[Game Launcher,6,main]

  Content:
    java.lang.NullPointerException

    at java.util.StringTokenizer.<init>(Unknown Source)

    at java.util.StringTokenizer.<init>(Unknown Source)

    at org.jackhuang.hellominecraft.util.StrUtils.tokenize(StrUtils.java:211)

    at org.jackhuang.hellominecraft.util.StrUtils.tokenize(StrUtils.java:206)

    at org.jackhuang.hellominecraft.launcher.core.launch.MinecraftLoader.makeSelf(MinecraftLoader.java:60)

    at org.jackhuang.hellominecraft.launcher.core.launch.AbstractMinecraftLoader.makeLaunchingCommand(AbstractMinecraftLoader.java:145)

    at org.jackhuang.hellominecraft.launcher.core.launch.GameLauncher.makeLaunchCommand(GameLauncher.java:110)

    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_171, Oracle Corporation
  Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation

老版本（2.x）的hmcl启动器无法启动1.13的，请换用3.1版本的HMCL或者其他启动器