mojira.dev
MC-82969

Corrupt pack.mcmeta causes crash

Resolved
Fixed
0

Setting the contents of pack.mcmeta to

{
}

causes a crash.

Attachments

2015-11-01_13.55.43.png

Comments 5

Crash Report:

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

Time: 7/29/15 10:39 AM
Description: Initializing game

java.lang.NullPointerException: Initializing game
	at bqd$a.f(SourceFile:313)
	at bqd.<init>(SourceFile:79)
	at axc.al(SourceFile:371)
	at axc.a(SourceFile:308)
	at net.minecraft.client.main.Main.main(SourceFile:125)


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

-- Head --
Stacktrace:
	at bqd$a.f(SourceFile:313)
	at bqd.<init>(SourceFile:79)
	at axc.al(SourceFile:371)

-- Initialization --
Details:
Stacktrace:
	at axc.a(SourceFile:308)
	at net.minecraft.client.main.Main.main(SourceFile:125)

-- System Details --
Details:
	Minecraft Version: 15w31a
	Operating System: Windows 8.1 (x86) version 6.3
	Java Version: 1.8.0_51, Oracle Corporation
	Java VM Version: Java HotSpot(TM) Client VM (mixed mode), Oracle Corporation
	Memory: 75953384 bytes (72 MB) / 147726336 bytes (140 MB) up to 523501568 bytes (499 MB)
	JVM Flags: 6 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M
	IntCache: cache: 0, tcache: 0, allocated: 0, tallocated: 0
	Launched Version: 15w31a
	LWJGL: 2.9.4
	OpenGL: Intel(R) HD Graphics GL version 4.0.0 - Build 10.18.10.3355, Intel
	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: No
	Is Modded: Probably not. Jar signature remains and client brand is untouched.
	Type: Client (map_client.txt)
	Resource Packs: 3DD Custom
	Current Language: ~~ERROR~~ NullPointerException: null
	Profiler Position: N/A (disabled)
	CPU: 2x Intel(R) Celeron(R) CPU N2820 @ 2.13GHz

Launcher Log:

[10:39:38 INFO]: Minecraft Launcher 1.6.13 (through bootstrap 100) started on windows...
[10:39:38 INFO]: Current time is Jul 29, 2015 10:39:38 AM
[10:39:38 INFO]: System.getProperty('os.name') == 'Windows 8.1'
[10:39:38 INFO]: System.getProperty('os.version') == '6.3'
[10:39:38 INFO]: System.getProperty('os.arch') == 'x86'
[10:39:38 INFO]: System.getProperty('java.version') == '1.8.0_51'
[10:39:38 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[10:39:38 INFO]: System.getProperty('sun.arch.data.model') == '32'
[10:39:38 INFO]: proxy == DIRECT
[10:39:38 INFO]: JFX is already initialized
[10:39:39 INFO]: Refreshing local version list...
[10:39:39 INFO]: Refreshing remote version list...
[10:39:42 INFO]: Refresh complete.
[10:39:42 INFO]: Loaded 3 profile(s); selected 'Snapshots'
[10:39:42 INFO]: Refreshing auth...
[10:39:42 INFO]: Logging in with access token
[10:39:45 INFO]: Getting syncinfo for selected version
[10:39:45 INFO]: Queueing library & version downloads
[10:39:45 INFO]: Download job 'Version & Libraries' started (16 threads, 31 files)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.24\realms-1.7.24.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries'... (try 0)
[10:39:45 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Download job 'Resources' skipped as there are no files to download
[10:39:49 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.4-nightly-20150209\lwjgl-platform-2.9.4-nightly-20150209-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries'... (try 0)
[10:39:49 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:49 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Attempting to download C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a.jar for job 'Version & Libraries'... (try 0)
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput-platform\2.0.5\jinput-platform-2.0.5-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.24\realms-1.7.24.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:39:50 INFO]: Finished downloading C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a.jar for job 'Version & Libraries': Used own copy as it matched etag
[10:39:50 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:04.859)
[10:39:50 INFO]: Launching game
[10:39:50 INFO]: Unpacking natives to C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a-natives-148819065050570
[10:39:51 INFO]: Launching in C:\Users\Connor\AppData\Roaming\.minecraft
[10:39:51 INFO]: Half command: C:\Program Files (x86)\Java\jre1.8.0_51\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -XX:+UseConcMarkSweepGC -XX:+CMSIncrementalMode -XX:-UseAdaptiveSizePolicy -Xmn128M -Djava.library.path=C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a-natives-148819065050570 -cp C:\Users\Connor\AppData\Roaming\.minecraft\libraries\oshi-project\oshi-core\1.1\oshi-core-1.1.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\jna\3.4.0\jna-3.4.0.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\dev\jna\platform\3.4.0\platform-3.4.0.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.6\jopt-simple-4.6.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.23.Final\netty-all-4.0.23.Final.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\17.0\guava-17.0.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.3.2\commons-lang3-3.3.2.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.5.21\authlib-1.5.21.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\com\mojang\realms\1.7.24\realms-1.7.24.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-compress\1.8.1\commons-compress-1.8.1.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpclient\4.3.3\httpclient-4.3.3.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\commons-logging\commons-logging\1.1.3\commons-logging-1.1.3.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\httpcomponents\httpcore\4.3.2\httpcore-4.3.2.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.4-nightly-20150209\lwjgl-2.9.4-nightly-20150209.jar;C:\Users\Connor\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.4-nightly-20150209\lwjgl_util-2.9.4-nightly-20150209.jar;C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a.jar net.minecraft.client.main.Main
[10:39:51 INFO]: Looking for orphaned versions to clean up...
[10:39:52 INFO]: Looking for old natives & assets to clean up...
[10:39:59 ERROR]: Game ended with bad state (exit code -1)
[10:39:59 INFO]: Ignoring visibility rule and showing launcher due to a game crash
[10:39:59 INFO]: Crash report detected, opening: C:\Users\Connor\AppData\Roaming\.minecraft\crash-reports\crash-2015-07-29_10.39.59-client.txt
[10:39:59 INFO]: Deleting C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a-natives-148819065050570
[10:39:59 WARN]: Couldn't delete C:\Users\Connor\AppData\Roaming\.minecraft\versions\15w31a\15w31a-natives-148819065050570 - scheduling for deletion upon exit
[10:40:00 INFO]: Reported crash to Mojang (ID 74700670)

Ok, so, I'm not sure why... Turns out it was a problem with a resource pack that had an empty pack.mcmeta file (don't ask...). I have no idea why that caused this, but manually removing the resource pack in the options file fixed it.

Yes, definitely a problem with resource packs; the crash occurs in 

net.minecraft.client.resources.ResourcePackRepository$Entry.getPackFormat()

Fixed somewhere between 15w31 to 15w44b

Connor Scialdone

(Unassigned)

Confirmed

Minecraft 15w31a

Minecraft 15w44b

Retrieved