[SEVERE] Error occurred while enabling CreativeGates v1.3.5 (Is it up to date?)
java.lang.NoClassDefFoundError: com/google/gson/GsonBuilder
at com.massivecraft.creativegates.zcore.MPlugin.getGsonBuilder(MPlugin.java:133)
at com.massivecraft.creativegates.zcore.MPlugin.preEnable(MPlugin.java:69)
at com.massivecraft.creativegates.CreativeGates.onEnable(CreativeGates.java:20)
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:217)
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:359)
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:381)
at org.bukkit.craftbukkit.CraftServer.loadPlugin(CraftServer.java:293)
at org.bukkit.craftbukkit.CraftServer.enablePlugins(CraftServer.java:275)
at net.minecraft.server.MinecraftServer.j(MinecraftServer.java:284)
at net.minecraft.server.MinecraftServer.e(MinecraftServer.java:263)
at net.minecraft.server.MinecraftServer.a(MinecraftServer.java:222)
at net.minecraft.server.DedicatedServer.init(DedicatedServer.java:144)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:371)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:818)
Caused by: java.lang.ClassNotFoundException: com.google.gson.GsonBuilder
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:132)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
... 14 more
Caused by: java.lang.NullPointerException
at org.objectweb.asm.ClassReader.<init>(Unknown Source)
at net.minecraftforge.transformers.EventTransformer.transform(EventTransformer.java:27)
at cpw.mods.fml.relauncher.RelaunchClassLoader.runTransformers(RelaunchClassLoader.java:236)
at cpw.mods.fml.relauncher.RelaunchClassLoader.findClass(RelaunchClassLoader.java:124)
... 16 more