Minecraft Forums

So, today I closed Minecraft to install a new map, like usually.
then, befor instaling, I opend Minecraft again to check something on a server, but when I started the luncher, it just restarted-all my prophiles where gone, and the only prophile that was in the luncher was downloading&play minecraft 1.7.9 .
i got my 1.7.4 propile and it loaded normally on the loading bar (the green line) but when it was colse to the end, it closed and opend again, saying that due to a game crash' the lucher opend.
this happend to my again and again, with every version i tried and also after deleting.minecraft and installing it again 3 times.
Can someone help me? this is really importent.


LOG:

[10:37:53 INFO]: Job 'Version & Libraries' finished successfully (took 0:00:18.233)
[10:37:53 INFO]: Launching game
[10:37:53 INFO]: Looking for old natives & assets to clean up...
[10:37:53 INFO]: Unpacking natives to C:\Users\user\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-11263375290002
[10:37:54 INFO]: Launching in C:\Users\user\AppData\Roaming\.minecraft
[10:37:54 INFO]: Half command: C:\Program Files (x86)\Java\jre7\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx512M -Djava.library.path=C:\Users\user\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-11263375290002 -cp C:\Users\user\AppData\Roaming\.minecraft\libraries\java3d\vecmath\1.3.1\vecmath-1.3.1.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\net\sf\trove4j\trove4j\3.0.3\trove4j-3.0.3.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\ibm\icu\icu4j-core-mojang\51.2\icu4j-core-mojang-51.2.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\paulscode\codecjorbis\20101023\codecjorbis-20101023.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\paulscode\codecwav\20101023\codecwav-20101023.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\paulscode\libraryjavasound\20101123\libraryjavasound-20101123.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\paulscode\librarylwjglopenal\20100824\librarylwjglopenal-20100824.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\paulscode\soundsystem\20120107\soundsystem-20120107.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\io\netty\netty-all\4.0.10.Final\netty-all-4.0.10.Final.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\guava\guava\15.0\guava-15.0.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\commons\commons-lang3\3.1\commons-lang3-3.1.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\commons-io\commons-io\2.4\commons-io-2.4.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\google\code\gson\gson\2.2.4\gson-2.2.4.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\com\mojang\authlib\1.2\authlib-1.2.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-api\2.0-beta9\log4j-api-2.0-beta9.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\org\apache\logging\log4j\log4j-core\2.0-beta9\log4j-core-2.0-beta9.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl\2.9.1-nightly-20131120\lwjgl-2.9.1-nightly-20131120.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\org\lwjgl\lwjgl\lwjgl_util\2.9.1-nightly-20131120\lwjgl_util-2.9.1-nightly-20131120.jar;C:\Users\user\AppData\Roaming\.minecraft\libraries\tv\twitch\twitch\5.16\twitch-5.16.jar;C:\Users\user\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4.jar net.minecraft.client.main.Main
[10:37:54 INFO]: Client> Error: Could not find or load main class net.minecraft.client.main.Main
[10:37:54 ERROR]: Game ended with bad state (exit code 1)
[10:37:54 INFO]: Deleting C:\Users\user\AppData\Roaming\.minecraft\versions\1.7.4\1.7.4-natives-11263375290002
[10:37:54 INFO]: Ignoring visibility rule and showing launcher due to a game crash

Please post the entire log in spoiler tags, not just a small section.

[SPOILER]text goes here[/SPOILER]

For me exit code 1 means java being killed. You could try to update java.