---- Minecraft Crash Report ----
// There are four lights!

Time: 4/1/18 10:40 PM
Description: Exception in server tick loop

java.lang.NoClassDefFoundError: net/minecraft/client/util/ITooltipFlag
	at java.lang.Class.getDeclaredMethods0(Native Method)
	at java.lang.Class.privateGetDeclaredMethods(Class.java:2701)
	at java.lang.Class.privateGetPublicMethods(Class.java:2902)
	at java.lang.Class.getMethods(Class.java:1615)
	at net.minecraftforge.fml.common.eventhandler.EventBus.register(EventBus.java:81)
	at com.kittenkoder.magitech.MagitechRegistry$RegistrationHandler.registerItemBlocks(MagitechRegistry.java:733)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler_5_RegistrationHandler_registerItemBlocks_Register.invoke(.dynamic)
	at net.minecraftforge.fml.common.eventhandler.ASMEventHandler.invoke(ASMEventHandler.java:90)
	at net.minecraftforge.fml.common.eventhandler.EventBus$1.invoke(EventBus.java:143)
	at net.minecraftforge.fml.common.eventhandler.EventBus.post(EventBus.java:179)
	at net.minecraftforge.registries.GameData.fireRegistryEvents(GameData.java:741)
	at net.minecraftforge.fml.common.Loader.preinitializeMods(Loader.java:603)
	at net.minecraftforge.fml.server.FMLServerHandler.beginServerLoading(FMLServerHandler.java:98)
	at net.minecraftforge.fml.common.FMLCommonHandler.onServerStart(FMLCommonHandler.java:331)
	at net.minecraft.server.dedicated.DedicatedServer.init(DedicatedServer.java:128)
	at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:550)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.util.ITooltipFlag
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:191)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 17 more
Caused by: net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerException: Exception in class transformer net.minecraftforge.fml.common.asm.transformers.SideTransformer@30506c0d from coremod FMLCorePlugin
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:262)
	at net.minecraft.launchwrapper.LaunchClassLoader.runTransformers(LaunchClassLoader.java:279)
	at net.minecraft.launchwrapper.LaunchClassLoader.findClass(LaunchClassLoader.java:176)
	... 19 more
Caused by: java.lang.RuntimeException: Attempted to load class net/minecraft/client/util/ITooltipFlag for invalid side SERVER
	at net.minecraftforge.fml.common.asm.transformers.SideTransformer.transform(SideTransformer.java:62)
	at net.minecraftforge.fml.common.asm.ASMTransformerWrapper$TransformerWrapper.transform(ASMTransformerWrapper.java:258)
	... 21 more


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

-- System Details --
Details:
	Minecraft Version: 1.12.2
	Operating System: Linux (amd64) version 4.8.0-53-generic
	Java Version: 1.8.0_161, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 1548931672 bytes (1477 MB) / 1698693120 bytes (1620 MB) up to 5603590144 bytes (5344 MB)
	JVM Flags: 0 total; 
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	FML: MCP 9.42 Powered by Forge 14.23.1.2581 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    | forgeSrc-1.12.2-14.23.1.2581.jar | None      |
	| UCH   | forge     | 14.23.1.2581 | forgeSrc-1.12.2-14.23.1.2581.jar | None      |
	| UCH   | magitech  | 1.0.0        | bin                              | None      |

	Loaded coremods (and transformers): 
	Profiler Position: N/A (disabled)
	Is Modded: Definitely; Server brand changed to 'fml,forge'
	Type: Dedicated Server (map_server.txt)