I have a crash that occurs when I run a mod from forge-1.9.4-12.17.0.1976 installed with the windows installer. It's about a method that's supposed to be part of minecraft. Strange thing is that I had this same mod running from a "gradlew runClient" using the mdk forge version 1.9.4-12.17.0.1976 and it ran fine.

 

What am I doing wrong?

 

--- Minecraft Crash Report ----
// Hi. I'm Minecraft, and I'm a crashaholic.

Time: 2-7-16 13:35
Description: There was a severe problem during mod loading that has caused the game to fail

net.minecraftforge.fml.common.LoaderException: java.lang.NoSuchMethodError: net.minecraft.block.properties.PropertyEnum.create(Ljava/lang/String;Ljava/lang/Class;Lcom/google/common/base/Predicate;)Lnet/minecraft/block/properties/PropertyEnum;
at net.minecraftforge.fml.common.LoadController.transition(LoadController.java:179)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:555)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:210)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:437)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:349)
at net.minecraft.client.main.Main.main(SourceFile:124)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
Caused by: java.lang.NoSuchMethodError: net.minecraft.block.properties.PropertyEnum.create(Ljava/lang/String;Ljava/lang/Class;Lcom/google/common/base/Predicate;)Lnet/minecraft/block/properties/PropertyEnum;
at net.tropicraft.block.BlockVariant.<clinit>(BlockVariant.java:24)
at net.tropicraft.proxy.CommonProxy.<clinit>(CommonProxy.java:19)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:344)
at net.minecraftforge.fml.common.ProxyInjector.inject(ProxyInjector.java:64)
at net.minecraftforge.fml.common.FMLModContainer.constructMod(FMLModContainer.java:546)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.sendEventToModContainer(LoadController.java:228)
at net.minecraftforge.fml.common.LoadController.propogateStateMessage(LoadController.java:206)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:483)
at com.google.common.eventbus.EventSubscriber.handleEvent(EventSubscriber.java:74)
at com.google.common.eventbus.SynchronizedEventSubscriber.handleEvent(SynchronizedEventSubscriber.java:47)
at com.google.common.eventbus.EventBus.dispatch(EventBus.java:322)
at com.google.common.eventbus.EventBus.dispatchQueuedEvents(EventBus.java:304)
at com.google.common.eventbus.EventBus.post(EventBus.java:275)
at net.minecraftforge.fml.common.LoadController.distributeStateMessage(LoadController.java:135)
at net.minecraftforge.fml.common.Loader.loadMods(Loader.java:524)
... 10 more


A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
Minecraft Version: 1.9.4
Operating System: Windows 10 (x86) version 10.0
Java Version: 1.8.0_25, Oracle Corporation
Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
Memory: 103793088 bytes (98 MB) / 300695552 bytes (286 MB) up to 523501568 bytes (499 MB)
JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.28 Powered by Forge 12.17.0.1976 4 mods loaded, 4 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored
UC	mcp{9.19} [Minecraft Coder Pack] (minecraft.jar) 
UC	FML{8.0.99.99} [Forge Mod Loader] (forge-1.9.4-12.17.0.1976.jar) 
UC	Forge{12.17.0.1976} [Minecraft Forge] (forge-1.9.4-12.17.0.1976.jar) 
UE	tropicraft{v7.0} [Tropicraft] (tropicraft-1.0.jar) 
Loaded coremods (and transformers): 
GL info: ' Vendor: 'NVIDIA Corporation' Version: '3.3.0' Renderer: 'GeForce GT 220/PCIe/SSE2'

It looks like you're using a deobfuscated build of the mod in the obfuscated environment. Make sure you build your mod with the

build

Gradle task, this reobfuscates the mod after building it.

gradlew build seems to fix it. Many thanks!