Minecraft Crash-report

---- Minecraft Crash Report ----
// Don't be sad, have a hug! <3

Time: 4/26/17 4:25 PM
Description: Ticking screen

java.lang.NullPointerException: Ticking screen
	at io.netty.bootstrap.Bootstrap.checkAddress(Bootstrap.java:358)
	at io.netty.bootstrap.Bootstrap.doResolveAndConnect(Bootstrap.java:180)
	at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:162)
	at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:143)
	at brj.b(SourceFile:241)
	at brj.a(SourceFile:45)
	at brj$1.a(SourceFile:144)
	at gf.l(SourceFile:381)
	at brj.a(SourceFile:254)
	at bmg.e(SourceFile:115)
	at bhb.t(SourceFile:1596)
	at bhb.ax(SourceFile:964)
	at bhb.a(SourceFile:404)
	at net.minecraft.client.main.Main.main(SourceFile:123)


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

-- Head --
Thread: Client thread
Stacktrace:
	at io.netty.bootstrap.Bootstrap.checkAddress(Bootstrap.java:358)
	at io.netty.bootstrap.Bootstrap.doResolveAndConnect(Bootstrap.java:180)
	at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:162)
	at io.netty.bootstrap.Bootstrap.connect(Bootstrap.java:143)
	at brj.b(SourceFile:241)
	at brj.a(SourceFile:45)
	at brj$1.a(SourceFile:144)
	at gf.l(SourceFile:381)
	at brj.a(SourceFile:254)
	at bmg.e(SourceFile:115)

-- Affected screen --
Details:
	Screen name: bmg
Stacktrace:
	at bhb.t(SourceFile:1596)
	at bhb.ax(SourceFile:964)
	at bhb.a(SourceFile:404)
	at net.minecraft.client.main.Main.main(SourceFile:123)

-- System Details --
Details:
	Minecraft Version: 17w17a
	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: 94920304 bytes (90 MB) / 231112704 bytes (220 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
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 17w17a
	LWJGL: 2.9.4
	OpenGL: GeForce GTX 750/PCIe/SSE2 GL version 4.5.0 NVIDIA 376.53, 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:
	Current Language: English (US)
	Profiler Position: N/A (disabled)
	CPU: 4x Intel(R) Core(TM) i5-4460 CPU @ 3.20GHz