服务器客户端无法打开？启动器报错？

ggggg

[13:44:01][main/ERROR]
---- Hello Minecraft! Crash Report ----
  Version: 2.3.3
  Time: 2015-6-29
  Thread: Thread[main,5,main]
  Advice:
    无建议。
  Content:
    java.lang.ExceptionInInitializerError
    at org.jackhuang.hellominecraft.launcher.Main.main(SourceFile:103)
Caused by: java.lang.IllegalArgumentException: class org.jackhuang.hellominecraft.launcher.dT declares multiple JSON fields named a
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(SourceFile:122)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(SourceFile:72)
    at com.google.gson.Gson.getAdapter(SourceFile:356)
    at com.google.gson.internal.bind.CollectionTypeAdapterFactory.create(SourceFile:52)
    at com.google.gson.Gson.getAdapter(SourceFile:356)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory$1.<init>(SourceFile:82)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.createBoundField(SourceFile:81)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.getBoundFields(SourceFile:118)
    at com.google.gson.internal.bind.ReflectiveTypeAdapterFactory.create(SourceFile:72)
    at com.google.gson.Gson.getAdapter(SourceFile:356)
    at com.google.gson.Gson.fromJson(SourceFile:802)
    at com.google.gson.Gson.fromJson(SourceFile:768)
    at com.google.gson.Gson.fromJson(SourceFile:717)
    at com.google.gson.Gson.fromJson(SourceFile:689)
    at org.jackhuang.hellominecraft.launcher.aC.b(SourceFile:74)
    at org.jackhuang.hellominecraft.launcher.aC.<clinit>(SourceFile:58)
    ... 1 more

-- System Details --
  Operating System: Windows 7 (x86) version 6.1
  Java Version: 1.7.0_67, Oracle Corporation
  Java VM Version: Java HotSpot(TM) Client VM (mixed mode, sharing), Oracle Corporation

乌鸦

换个老版本一点的JAVA就可以了