---- Minecraft Crash Report ----
// Everything's going to plan. No, really, that was supposed to happen.

Time: 13.12.18 11:58
Description: Rendering screen

java.lang.NoClassDefFoundError: net/minecraft/client/renderer/system/GlStateManager
	at com.mojang.realmsclient.RealmsMainScreen.drawRealmsLogo(RealmsMainScreen.java:880)
	at com.mojang.realmsclient.RealmsMainScreen.render(RealmsMainScreen.java:816)
	at csl.a(SourceFile:102)
	at dea.a(SourceFile:794)
	at cpk.d(SourceFile:910)
	at cpk.b(SourceFile:394)
	at net.minecraft.client.main.Main.main(SourceFile:154)
Caused by: java.lang.ClassNotFoundException: net.minecraft.client.renderer.system.GlStateManager
	at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
	... 7 more


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

-- Head --
Thread: Client thread
Stacktrace:
	at com.mojang.realmsclient.RealmsMainScreen.drawRealmsLogo(RealmsMainScreen.java:880)
	at com.mojang.realmsclient.RealmsMainScreen.render(RealmsMainScreen.java:816)
	at csl.a(SourceFile:102)

-- Screen render details --
Details:
	Screen name: csl
	Mouse location: Scaled: (254, 175). Absolute: (1017.000000, 698.000000)
	Screen size: Scaled: (480, 255). Absolute: (1920, 1017). Scale factor of 4.000000
Stacktrace:
	at dea.a(SourceFile:794)
	at cpk.d(SourceFile:910)
	at cpk.b(SourceFile:394)
	at net.minecraft.client.main.Main.main(SourceFile:154)

-- System Details --
Details:
	Minecraft Version: 18w50a
	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: 1453963184 bytes (1386 MB) / 2147483648 bytes (2048 MB) up to 2147483648 bytes (2048 MB)
	JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
	Launched Version: 18w50a
	LWJGL: 3.1.6 build 14
	OpenGL: GeForce GTX 1050 Ti/PCIe/SSE2 GL version 4.6.0 NVIDIA 391.35, NVIDIA Corporation
	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: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: vanilla
	Current Language: English (United Kingdom)
	CPU: 4x Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz