---- Minecraft Crash Report ----
// Uh... Did I do that?

Time: 1/4/18 12:30 AM
Description: mouseClicked event handler

g: Non [a-z0-9/._-] character in path of location: minecraft:piston[facing=up]
	at nr.<init>(SourceFile:36)
	at nr.<init>(SourceFile:41)
	at aua.a(SourceFile:140)
	at bgj.a(SourceFile:121)
	at bgj.b(SourceFile:137)
	at bgj.a(SourceFile:156)
	at bqu.a(SourceFile:59)
	at brj$1.a(SourceFile:168)
	at bow.mouseClicked(SourceFile:102)
	at bps.mouseClicked(SourceFile:44)
	at bnx.b(SourceFile:65)
	at bnx$$Lambda$220/1328154889.run(Unknown Source)
	at brm.a(SourceFile:426)
	at bnx.a(SourceFile:65)
	at bnx$$Lambda$158/1148088421.invoke(Unknown Source)
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:23)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:2599)
	at bof.a(SourceFile:294)
	at bnv.b(SourceFile:848)
	at bnv.a(SourceFile:382)
	at net.minecraft.client.main.Main.main(SourceFile:140)


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

-- Head --
Thread: Client thread
Stacktrace:
	at nr.<init>(SourceFile:36)
	at nr.<init>(SourceFile:41)
	at aua.a(SourceFile:140)
	at bgj.a(SourceFile:121)
	at bgj.b(SourceFile:137)
	at bgj.a(SourceFile:156)
	at bqu.a(SourceFile:59)
	at brj$1.a(SourceFile:168)
	at bow.mouseClicked(SourceFile:102)
	at bps.mouseClicked(SourceFile:44)
	at bnx.b(SourceFile:65)
	at bnx$$Lambda$220/1328154889.run(Unknown Source)

-- Affected screen --
Details:
	Screen name: brj
Stacktrace:
	at brm.a(SourceFile:426)
	at bnx.a(SourceFile:65)
	at bnx$$Lambda$158/1148088421.invoke(Unknown Source)
	at org.lwjgl.glfw.GLFWMouseButtonCallbackI.callback(GLFWMouseButtonCallbackI.java:23)
	at org.lwjgl.system.JNI.invokeV(Native Method)
	at org.lwjgl.glfw.GLFW.glfwWaitEventsTimeout(GLFW.java:2599)
	at bof.a(SourceFile:294)
	at bnv.b(SourceFile:848)
	at bnv.a(SourceFile:382)
	at net.minecraft.client.main.Main.main(SourceFile:140)

-- System Details --
Details:
	Minecraft Version: 18w01a
	Operating System: Windows 10 (amd64) version 10.0
	Java Version: 1.8.0_25, Oracle Corporation
	Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
	Memory: 165896872 bytes (158 MB) / 251658240 bytes (240 MB) up to 1073741824 bytes (1024 MB)
	JVM Flags: 8 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -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
	Launched Version: 18w01a
	LWJGL: 3.1.2 build 29
	OpenGL: AMD Radeon (TM) R5 M330 GL version 4.5.13506 Compatibility Profile Context 23.20.15007.1005, ATI Technologies Inc.
	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: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i3-5005U CPU @ 2.00GHz