Error: Could not find or load main class

Please provide full console output.

Ok, attached a file with the FULL console output, some words are in German though. Password, etc. replaced with XXX.

Confirmed for Windows 7, 64-bit, with JRE 7 64-bit. I even tried deleting versions, natives, the launcher, and eventually deleted .minecraft altogether and let it reinstall. No version of the game will launch anymore on the new launcher.

I'll attach my console output (English version) too.

Not working either with Java 7 on XP Pro 32 Bit Install. Deleting contents of .minecraft folder doesn't help. Console output attached.

I have the same problem here ..... i can't even start the game ! VERY annoying 😞

@Void_Concept and everyone else:
I hope you didn't miss the upvote button 🙂
Seems to be a major problem with the launcher, happens on Win XP, Win7, with Java 6 or 7 and every Minecraft version, ...

@Mojang:
The launcher had one job: Launching the game. It failed. Do it better next time 😛

We just found the issue; it'll be deployed asap.

Thx for making a little bug fixing overtime at Mojang. Launcher is launching again 🙂

EDIT:
Still can't change the Minecraft directory. Same problem. Default directoy works fine though.

Thank you SO much, this was really annoying me that I couldn't play Minecraft. Thanks so much Mojang!

Just happened to me on 1.3.9. Only once though.

[10:39:07 INFO]: Minecraft Launcher 1.3.9 (through bootstrap 4) started on windows...
[10:39:07 INFO]: Refreshing local version list...
[10:39:07 INFO]: Current time is Jan 31, 2014 10:39:07 AM
[10:39:07 INFO]: System.getProperty('os.name') == 'Windows 7'
[10:39:07 INFO]: System.getProperty('os.version') == '6.1'
[10:39:07 INFO]: System.getProperty('os.arch') == 'amd64'
[10:39:07 INFO]: System.getProperty('java.version') == '1.7.0_45'
[10:39:07 INFO]: System.getProperty('java.vendor') == 'Oracle Corporation'
[10:39:07 INFO]: System.getProperty('sun.arch.data.model') == '64'
[10:39:07 INFO]: Refreshing remote version list...
[10:39:08 INFO]: Refresh complete.
[10:39:08 INFO]: Loaded 8 profile(s); selected '1.7.4 Vanilla'
[10:39:08 INFO]: Refreshing auth...
[10:39:08 INFO]: Logging in with access token
[10:41:36 INFO]: Getting syncinfo for selected version
[10:41:36 INFO]: Queueing library & version downloads
[10:41:36 INFO]: Installed PartialVersion{id='14w05b', updateTime=Fri Jan 31 09:05:50 EST 2014, releaseTime=Fri Jan 31 09:05:50 EST 2014, type=SNAPSHOT}
[10:41:36 INFO]: Download job 'Version & Libraries' started (16 threads, 28 files)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\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)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.16\twitch-platform-5.16-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\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)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Download job 'Resources' skipped as there are no files to download
[10:41:36 INFO]: Job 'Resources' finished successfully (took 0:00:00.000)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-external-platform\4.5\twitch-external-platform-4.5-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Attempting to download C:\Users\Chris\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)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.4.2\authlib-1.4.2.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.4.2\authlib-1.4.2.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Attempting to download C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b.jar for job 'Version & Libraries'... (try 0)
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl-platform\2.9.1\lwjgl-platform-2.9.1-natives-windows.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch-platform\5.16\twitch-platform-5.16-natives-windows-64.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:36 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar for job 'Version & Libraries': Local file matches local checksum, using that
[10:41:36 INFO]: Finished downloading C:\Users\Chris\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
[10:41:37 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar for job 'Version & Libraries': Didn't have checksum so assuming our copy is good
[10:42:18 INFO]: Finished downloading C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b.jar for job 'Version & Libraries': Couldn't connect to server (SocketTimeoutException: 'Read timed out') but have local file, assuming it's good
[10:42:18 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:42.027)
[10:42:18 INFO]: Launching game
[10:42:18 INFO]: Looking for old natives & assets to clean up...
[10:42:18 INFO]: Unpacking natives to C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b-natives-1640782910814
[10:42:18 INFO]: Launching in C:\Users\Chris\Documents\Minecraft\Snapshots\snapshot
[10:42:18 INFO]: Half command: C:\Program Files\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1G -Djava.library.path=C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b-natives-1640782910814 -cp C:\Users\Chris\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\commons-codec\commons-codec\1.9\commons-codec-1.9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.4.2\authlib-1.4.2.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1\lwjgl-2.9.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1\lwjgl_util-2.9.1.jar;C:\Users\Chris\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b.jar net.minecraft.client.main.Main
[10:42:18 INFO]: Client> Error: Could not find or load main class net.minecraft.client.main.Main
[10:42:18 ERROR]: Game ended with bad state (exit code 1)
[10:42:18 INFO]: Deleting C:\Users\Chris\AppData\Roaming\.minecraft\versions\14w05b\14w05b-natives-1640782910814
[10:42:18 INFO]: Ignoring visibility rule and showing launcher due to a game crash