My launcher just stop specific moment. Don't know what is causing this. Can you help me.

 

My log:

https://dl.dropboxusercontent.com/u/79294727/ForgeModLoader-client-0.log

Interesting, the last line would apear to be galacticcraft, Coremods do have the tendancy to do weird things.

What I woudl advise is removing mods one by one untill the issue is resolved, and then re-adding them untill it breaks again, so you can figure out which mod is doing it.

Solved!

 

I removed all mods and was adding one by one this problem occured after adding Minechem.

 

Thanks for advice 

I'm also experiencing trouble with build .916 for MC 1.6.4 

When I try to launch Minecraft, it starts to load, but closes again right away. I have not installed any mods in this "profile" yet except Forge, in fact I've made an entirely new and empty folder for this version. But it wont work. I've also tried to install it in the "Forge profile"(The one in the .Minecraft folder) but with no luck.

I've checked to be sure I'm running latest Java Version 7 Update 40:

http://puu.sh/4GKqA.png

 

Here is my log after 1 launch:

http://puu.sh/4GKhT.log

 

And my folder after trying to launch the game once:

http://puu.sh/4GKkG.png

1) Don't hijack other's threads

2) The problem is that the class is not found, typically an issue with you not installing things correctly.