---- Minecraft Crash Report ----
// I bet Cylons wouldn't have this problem.

Time: 8/30/18 4:16 PM
Description: Initializing game

java.lang.NoSuchMethodError: net.minecraftforge.fml.common.registry.GameRegistry.registerTileEntity(Ljava/lang/Class;Lnet/minecraft/util/ResourceLocation;)V
at gaia.init.GaiaBlocks$RegistrationHandler.registerBlocks(GaiaBlocks.java:52)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_9_RegistrationHandler_registerBlocks_Register.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:734)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:604)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:270)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:466)
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
at net.minecraft.client.main.Main.main(SourceFile:123)
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:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

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

-- Head --
Thread: Client thread
Stacktrace:
at gaia.init.GaiaBlocks$RegistrationHandler.registerBlocks(GaiaBlocks.java:52)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_9_RegistrationHandler_registerBlocks_Register.invoke(.dynamic)
at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143)
at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:734)
at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:604)
at net.minecraftforge.fml.client.FMLClientHandler.beginMinecraftLoading(FMLClientHandler.java:270)
at net.minecraft.client.Minecraft.func_71384_a(Minecraft.java:466)

-- Initialization --
Details:
Stacktrace:
at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:377)
at net.minecraft.client.main.Main.main(SourceFile:123)
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:497)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
Minecraft Version: 1.12.2
Operating System: Windows 10 (amd64) version 10.0
Java Version: 1.8.0_51, Oracle Corporation
Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
Memory: 105666504 bytes (100 MB) / 268435456 bytes (256 MB) up to 10737418240 bytes (10240 MB)
JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx10G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=16M
IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
FML: MCP 9.42 Powered by Forge 14.23.3.2655 5 mods loaded, 5 mods active
States: 'U' = Unloaded 'L' = Loaded 'C' = Constructed 'H' = Pre-initialized 'I' = Initialized 'J' = Post-initialized 'A' = Available 'D' = Disabled 'E' = Errored

| State | ID             | Version      | Source                                | Signature                                |
|:----- |:-------------- |:------------ |:------------------------------------- |:---------------------------------------- |
| UCH   | minecraft      | 1.12.2       | minecraft.jar                         | None                                     |
| UCH   | mcp            | 9.42         | minecraft.jar                         | None                                     |
| UCH   | FML            | 8.0.99.99    | forge-1.12.2-14.23.3.2655.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCH   | forge          | 14.23.3.2655 | forge-1.12.2-14.23.3.2655.jar         | e3c3d50c7c986df74c645c0ac54639741c90a557 |
| UCH   | grimoireofgaia | 1.6.0-beta   | GrimoireOfGaia3-1.12.2-1.6.0-beta.jar | None                                     |

Loaded coremods (and transformers): 
GL info: ' Vendor: 'Intel' Version: '4.5.0 - Build 23.20.16.4849' Renderer: 'Intel(R) HD Graphics 530'
Launched Version: 1.12.2-forge1.12.2-14.23.3.2655
LWJGL: 2.9.4
OpenGL: Intel(R) HD Graphics 530 GL version 4.5.0 - Build 23.20.16.4849, Intel
GL Caps: Using GL 1.3 multitexturing.

Using GL 1.3 texture combiners.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Shaders are available because OpenGL 2.1 is supported.
VBOs are available because OpenGL 1.5 is supported.

Using VBOs: Yes
Is Modded: Definitely; Client brand changed to 'fml,forge'
Type: Client (map_client.txt)
Resource Packs: 
Current Language: English (US)
Profiler Position: N/A (disabled)
CPU: 8x Intel(R) Core(TM) i7-6700 CPU @ 3.40GHz

Very weird. I never encountered this issue. It seems to be pointing to GaiaBlocks, line 52 as the problem.

This mod was built using Forge 14.23.4.2747. I suggest using the latest version of Forge.

This is due to running an outdated forge version. Please update to the recommended version of forge

24 hours have passed without a response.

I believe this issue is resolved.