Technic launcher stopped working

[megglesmom]

Launcher Version: latest one on website

Operating System: Windows Vista Home Premium

Java Version: jre7

Antivirus Program: AVG Free version

Description of Problem:

when trying to open launcher I get the following message "Could not find the main class: net.technic pack.legacy wrapper.launch". Nothing else happens. The program was playing fine a week ago

Error Messages:

net.technic pack.legacy wrapper.launch

Error Log:

2013/11/08 00:10:16 [iNFO] Args: []

2013/11/08 00:10:36 [iNFO] ------------------------------------------

2013/11/08 00:10:36 [iNFO] Technic Launcher is starting....

2013/11/08 00:10:36 [iNFO] Launcher Build: 338

2013/11/08 00:10:36 [iNFO] ------------ Startup Parameters ------------

2013/11/08 00:10:36 [iNFO] --------- End of Startup Parameters ---------

2013/11/08 00:10:38 [iNFO] Analytics Response [runLauncher]: 200

2013/11/08 00:10:43 [iNFO] Starting download of http://skins.technicpack.net/helm/megglesmom/100, with 3 tries remaining

2013/11/08 00:10:44 [iNFO] Valid: 

2013/11/08 00:10:44 [iNFO] {"accessToken":"f95eaac485b84b6b98b11c951d799e02","clientToken":"406986a7-d4ca-4a94-be12-4757a0369416","selectedProfile":{"id":"e70a31761d06407ea14abbdd602ce1ae","name":"megglesmom"}}

2013/11/08 00:10:45 [iNFO] Launcher took: 9578ms to start

2013/11/08 00:10:46 [iNFO] Starting download of https://s3.amazonaws.com/Minecraft.Resources/sounds/music/nuance1.ogg, with 3 tries remaining

2013/11/08 00:10:47 [WARNING] File version.json not found in C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar

2013/11/08 00:10:49 [iNFO] Starting download of https://s3.amazonaws.com/Minecraft.Resources/sounds/music/nuance2.ogg, with 3 tries remaining

2013/11/08 00:10:50 [iNFO] Starting download of https://s3.amazonaws.com/Minecraft.Resources/sounds/music/piano1.ogg, with 3 tries remaining

2013/11/08 00:10:56 [iNFO] Starting download of https://s3.amazonaws.com/Minecraft.Resources/sounds/music/piano2.ogg, with 3 tries remaining

2013/11/08 00:11:00 [iNFO] Running C:\Program Files\Java\jre6\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m -Djava.library.path=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\natives -Dfml.core.libraries.mirror=http://mirror.technicpack.net/Technic/lib/fml/%s -Dminecraft.applet.TargetDirectory=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox -cp C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\technicpack\legacywrapper\1.0-SNAPSHOT\legacywrapper-1.0-SNAPSHOT.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\minecraft.jar net.technicpack.legacywrapper.Launch megglesmom token:f95eaac485b84b6b98b11c951d799e02:e70a31761d06407ea14abbdd602ce1ae --gameDir C:\Users\KRISTI\AppData\Roaming\.technic\yogbox --assetsDir C:\Users\KRISTI\AppData\Roaming\.technic\assets

2013/11/08 00:11:02 [iNFO] Analytics Response [runModpack]: 200

2013/11/08 00:11:02 [iNFO]  java.lang.UnsupportedClassVersionError: net/technicpack/legacywrapper/Launch : Unsupported major.minor version 51.0

2013/11/08 00:11:02 [iNFO]  	at java.lang.ClassLoader.defineClass1(Native Method)

2013/11/08 00:11:02 [iNFO]  	at java.lang.ClassLoader.defineClassCond(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.lang.ClassLoader.defineClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.security.SecureClassLoader.defineClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.net.URLClassLoader.defineClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.net.URLClassLoader.access$000(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.net.URLClassLoader$1.run(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.security.AccessController.doPrivileged(Native Method)

2013/11/08 00:11:02 [iNFO]  	at java.net.URLClassLoader.findClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

2013/11/08 00:11:02 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:11:03 [iNFO] Starting download of https://s3.amazonaws.com/Minecraft.Resources/sounds/music/piano3.ogg, with 3 tries remaining

2013/11/08 00:11:16 [iNFO]  Exception in thread "main" 

2013/11/08 00:11:20 [WARNING] File version.json not found in C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar

2013/11/08 00:11:27 [iNFO] Running C:\Program Files\Java\jre6\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m -Djava.library.path=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\natives -Dfml.core.libraries.mirror=http://mirror.technicpack.net/Technic/lib/fml/%s -Dminecraft.applet.TargetDirectory=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox -cp C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\technicpack\legacywrapper\1.0-SNAPSHOT\legacywrapper-1.0-SNAPSHOT.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\minecraft.jar net.technicpack.legacywrapper.Launch megglesmom token:f95eaac485b84b6b98b11c951d799e02:e70a31761d06407ea14abbdd602ce1ae --gameDir C:\Users\KRISTI\AppData\Roaming\.technic\yogbox --assetsDir C:\Users\KRISTI\AppData\Roaming\.technic\assets

2013/11/08 00:20:20 [iNFO] ------------------------------------------

2013/11/08 00:20:20 [iNFO] Technic Launcher is starting....

2013/11/08 00:20:20 [iNFO] Launcher Build: 338

2013/11/08 00:20:20 [iNFO] ------------ Startup Parameters ------------

2013/11/08 00:20:20 [iNFO] --------- End of Startup Parameters ---------

2013/11/08 00:20:21 [iNFO] Analytics Response [runLauncher]: 200

2013/11/08 00:20:30 [iNFO] Starting download of http://skins.technicpack.net/helm/megglesmom/100, with 3 tries remaining

2013/11/08 00:20:31 [iNFO] Valid: 

2013/11/08 00:20:31 [iNFO] {"accessToken":"e3fa7911c4ba4cb584e50c1ac0375d0d","clientToken":"406986a7-d4ca-4a94-be12-4757a0369416","selectedProfile":{"id":"e70a31761d06407ea14abbdd602ce1ae","name":"megglesmom"}}

2013/11/08 00:20:31 [iNFO] Launcher took: 11548ms to start

2013/11/08 00:20:34 [WARNING] File version.json not found in C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar

2013/11/08 00:20:37 [iNFO] Running C:\Program Files\Java\jre6\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m -Djava.library.path=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\natives -Dfml.core.libraries.mirror=http://mirror.technicpack.net/Technic/lib/fml/%s -Dminecraft.applet.TargetDirectory=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox -cp C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\technicpack\legacywrapper\1.0-SNAPSHOT\legacywrapper-1.0-SNAPSHOT.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\minecraft.jar net.technicpack.legacywrapper.Launch megglesmom token:e3fa7911c4ba4cb584e50c1ac0375d0d:e70a31761d06407ea14abbdd602ce1ae --gameDir C:\Users\KRISTI\AppData\Roaming\.technic\yogbox --assetsDir C:\Users\KRISTI\AppData\Roaming\.technic\assets

2013/11/08 00:20:38 [iNFO] Analytics Response [runModpack]: 200

2013/11/08 00:20:38 [iNFO]  java.lang.UnsupportedClassVersionError: net/technicpack/legacywrapper/Launch : Unsupported major.minor version 51.0

2013/11/08 00:20:38 [iNFO]  	at java.lang.ClassLoader.defineClass1(Native Method)

2013/11/08 00:20:38 [iNFO]  	at java.lang.ClassLoader.defineClassCond(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.lang.ClassLoader.defineClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.security.SecureClassLoader.defineClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.net.URLClassLoader.defineClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.net.URLClassLoader.access$000(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.net.URLClassLoader$1.run(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.security.AccessController.doPrivileged(Native Method)

2013/11/08 00:20:38 [iNFO]  	at java.net.URLClassLoader.findClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

2013/11/08 00:20:38 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:36:31 [iNFO] ------------------------------------------

2013/11/08 00:36:31 [iNFO] Technic Launcher is starting....

2013/11/08 00:36:31 [iNFO] Launcher Build: 338

2013/11/08 00:36:31 [iNFO] ------------ Startup Parameters ------------

2013/11/08 00:36:31 [iNFO] --------- End of Startup Parameters ---------

2013/11/08 00:36:32 [iNFO] Analytics Response [runLauncher]: 200

2013/11/08 00:36:35 [iNFO] Starting download of http://skins.technicpack.net/helm/megglesmom/100, with 3 tries remaining

2013/11/08 00:36:35 [iNFO] Valid: 

2013/11/08 00:36:35 [iNFO] {"accessToken":"ad165a5ae168450fb0de1e1fe224c92f","clientToken":"406986a7-d4ca-4a94-be12-4757a0369416","selectedProfile":{"id":"e70a31761d06407ea14abbdd602ce1ae","name":"megglesmom"}}

2013/11/08 00:36:35 [iNFO] Launcher took: 4657ms to start

2013/11/08 00:36:38 [WARNING] File version.json not found in C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar

2013/11/08 00:36:43 [iNFO] Running C:\Program Files\Java\jre6\bin\javaw.exe -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xmx1024m -XX:MaxPermSize=128m -Djava.library.path=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\natives -Dfml.core.libraries.mirror=http://mirror.technicpack.net/Technic/lib/fml/%s -Dminecraft.applet.TargetDirectory=C:\Users\KRISTI\AppData\Roaming\.technic\yogbox -cp C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\technicpack\legacywrapper\1.0-SNAPSHOT\legacywrapper-1.0-SNAPSHOT.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\sf\jopt-simple\jopt-simple\4.5\jopt-simple-4.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\ow2\asm\asm-all\4.1\asm-all-4.1.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jinput\jinput\2.0.5\jinput-2.0.5.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\net\java\jutils\jutils\1.0.0\jutils-1.0.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl\2.9.0\lwjgl-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\cache\org\lwjgl\lwjgl\lwjgl_util\2.9.0\lwjgl_util-2.9.0.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\modpack.jar;C:\Users\KRISTI\AppData\Roaming\.technic\yogbox\bin\minecraft.jar net.technicpack.legacywrapper.Launch megglesmom token:ad165a5ae168450fb0de1e1fe224c92f:e70a31761d06407ea14abbdd602ce1ae --gameDir C:\Users\KRISTI\AppData\Roaming\.technic\yogbox --assetsDir C:\Users\KRISTI\AppData\Roaming\.technic\assets

2013/11/08 00:36:44 [iNFO] Analytics Response [runModpack]: 200

2013/11/08 00:36:44 [iNFO]  java.lang.UnsupportedClassVersionError: net/technicpack/legacywrapper/Launch : Unsupported major.minor version 51.0

2013/11/08 00:36:44 [iNFO]  	at java.lang.ClassLoader.defineClass1(Native Method)

2013/11/08 00:36:44 [iNFO]  	at java.lang.ClassLoader.defineClassCond(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.lang.ClassLoader.defineClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.security.SecureClassLoader.defineClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.net.URLClassLoader.defineClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.net.URLClassLoader.access$000(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.net.URLClassLoader$1.run(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.security.AccessController.doPrivileged(Native Method)

2013/11/08 00:36:44 [iNFO]  	at java.net.URLClassLoader.findClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)

2013/11/08 00:36:44 [iNFO]  	at java.lang.ClassLoader.loadClass(Unknown Source)

2013/11/08 00:37:17 [iNFO]  Exception in thread "main" 

2013/11/08 00:38:19 [iNFO] Maximum usable memory detected: 4092 mb

[IanTheBosss]

Thats What Happend To Me Please Help And It Says Log Session Has Expired or become corrupt

[IanTheBosss]

Thats What Happend To Me Please Help And It Says Log Session Has Expired or become corrupt