LAN Host Skin Fix crash

---- Minecraft Crash Report ----
// Why is it breaking :(

Time: 9/28/15 7:11 PM
Description: Updating screen events

java.lang.NoSuchMethodError: net.minecraft.client.Minecraft.M()Lnet/minecraft/util/Session;
	at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2140)
	at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:230)
	at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225)
	at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:377)
	at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296)
	at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)
	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1640)
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
	at net.minecraft.client.main.Main.main(SourceFile:148)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	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 --
Stacktrace:
	at net.minecraft.client.Minecraft.func_71371_a(Minecraft.java:2140)
	at net.minecraft.client.gui.GuiCreateWorld.func_146284_a(GuiCreateWorld.java:230)
	at net.minecraft.client.gui.GuiScreen.func_73864_a(GuiScreen.java:225)
	at net.minecraft.client.gui.GuiCreateWorld.func_73864_a(GuiCreateWorld.java:377)
	at net.minecraft.client.gui.GuiScreen.func_146274_d(GuiScreen.java:296)
	at net.minecraft.client.gui.GuiScreen.func_146269_k(GuiScreen.java:268)

-- Affected screen --
Details:
	Screen name: net.minecraft.client.gui.GuiMainMenu
Stacktrace:
	at net.minecraft.client.Minecraft.func_71407_l(Minecraft.java:1640)
	at net.minecraft.client.Minecraft.func_71411_J(Minecraft.java:973)
	at net.minecraft.client.Minecraft.func_99999_d(Minecraft.java:898)
	at net.minecraft.client.main.Main.main(SourceFile:148)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at net.minecraft.launchwrapper.Launch.launch(Launch.java:135)
	at net.minecraft.launchwrapper.Launch.main(Launch.java:28)

-- System Details --
Details:
	Minecraft Version: 1.7.10
	Operating System: Windows 8.1 (amd64) version 6.3
	Java Version: 1.8.0_60, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 111438904 bytes (106 MB) / 351219712 bytes (334 MB) up to 1060372480 bytes (1011 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	AABB Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	IntCache: cache: 0, tcache: 0, allocated: 13, tallocated: 95
	FML: MCP v9.05 FML v7.10.99.99 Minecraft Forge 10.13.4.1492 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
	UCHIJAAAA	mcp{9.05} [Minecraft Coder Pack] (minecraft.jar)
	UCHIJAAAA	FML{7.10.99.99} [Forge Mod Loader] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
	UCHIJAAAA	Forge{10.13.4.1492} [Minecraft Forge] (forge-1.7.10-10.13.4.1492-1.7.10.jar)
	UCHIJAAAA	LANHostSkinFix{rv0} [LAN Host Skin Fix] (minecraft.jar)
	GL info: ' Vendor: 'NVIDIA Corporation' Version: '4.5.0 NVIDIA 355.82' Renderer: 'GeForce GTX 970/PCIe/SSE2'
	Launched Version: 1.7.10-Forge10.13.4.1492-1.7.10
	LWJGL: 2.9.1
	OpenGL: GeForce GTX 970/PCIe/SSE2 GL version 4.5.0 NVIDIA 355.82, NVIDIA Corporation
	GL Caps: Using GL 1.3 multitexturing.
Using framebuffer objects because OpenGL 3.0 is supported and separate blending is supported.
Anisotropic filtering is supported and maximum anisotropy is 16.
Shaders are available because OpenGL 2.1 is supported.

	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)
	Vec3 Pool Size: 0 (0 bytes; 0 MB) allocated, 0 (0 bytes; 0 MB) used
	Anisotropic Filtering: Off (1)