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Weird Error setting up the environment


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Ok I lost a hard-drive so have to rebuild my dev environment, simple enough task and I have everything done. Client boots up just fine but the server crashes out with a ClassCast Exception almost immediately. The EULA file is not being generated so it is not that, anyways I, for the life of me cannot figure out what is causing this.


here is the console output:


[14:27:04] [main/INFO] [GradleStart]: Extra: []
[14:27:04] [main/INFO] [GradleStart]: Running with arguments: [--tweakClass, cpw.mods.fml.common.launcher.FMLServerTweaker, --tweakClass, net.minecraftforge.gradle.GradleStartCommon$GradleStartCoremodTweaker]
[14:27:04] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Using primary tweak class name cpw.mods.fml.common.launcher.FMLServerTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.GradleStartCommon$GradleStartCoremodTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLServerTweaker
[14:27:04] [main/INFO] [FML]: Forge Mod Loader version for Minecraft 1.7.10 loading
[14:27:04] [main/INFO] [FML]: Java is Java HotSpot(TM) 64-Bit Server VM, version 1.7.0_75, running on Windows 8.1:amd64:6.3, installed at C:\Program Files\Java\jre7
[14:27:04] [main/INFO] [FML]: Managed to load a deobfuscated Minecraft name- we are in a deobfuscated environment. Skipping runtime deobfuscation
[14:27:04] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.GradleStartCommon$GradleStartCoremodTweaker
[14:27:04] [main/INFO] [GradleStart]: Injecting location in coremod cpw.mods.fml.relauncher.FMLCorePlugin
[14:27:04] [main/INFO] [GradleStart]: Injecting location in coremod net.minecraftforge.classloading.FMLForgePlugin
[14:27:04] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Loading tweak class name cpw.mods.fml.common.launcher.FMLDeobfTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Loading tweak class name net.minecraftforge.gradle.GradleStartCommon$GradleStartAccessTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLInjectionAndSortingTweaker
[14:27:04] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[14:27:04] [main/ERROR] [FML]: The binary patch set is missing. Either you are in a development environment, or things are not going to work!
[14:27:05] [main/ERROR] [FML]: FML appears to be missing any signature data. This is not a good thing
[14:27:05] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.relauncher.CoreModManager$FMLPluginWrapper
[14:27:05] [main/INFO] [LaunchWrapper]: Calling tweak class cpw.mods.fml.common.launcher.FMLDeobfTweaker
[14:27:05] [main/INFO] [LaunchWrapper]: Calling tweak class net.minecraftforge.gradle.GradleStartCommon$GradleStartAccessTweaker
[14:27:05] [main/ERROR] [GradleStart]: AccessTransformer.modifiers field was somehow not found...
[14:27:05] [main/ERROR] [LaunchWrapper]: Unable to launch
java.lang.ClassCastException: com.google.common.collect.ArrayListMultimap cannot be cast to com.google.common.collect.Multimap
at net.minecraftforge.gradle.GradleStartCommon$GradleStartAccessTweaker.injectIntoClassLoader(Unknown Source) ~[start/:?]
at net.minecraft.launchwrapper.Launch.launch(Launch.java:115) [launchwrapper-1.11.jar:?]
at net.minecraft.launchwrapper.Launch.main(Launch.java:28) [launchwrapper-1.11.jar:?]
at net.minecraftforge.gradle.GradleStartCommon.launch(Unknown Source) [start/:?]
at GradleStartServer.main(Unknown Source) [start/:?]


Any help would be greatly appreciated

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