Windows .exe Launcher closes after I press "launch"

[RLGamer]

Hello,
When I open the launcher, I select a mod pack, then click "launch". Moments later the launcher just closes. I checked that it wasn't running in task manager and I'm sure I wasn't just minimized. I really have no clue what's wrong!
Thanks in advance.

 

[Ashzification]

Please complete this:

Be sure to read everything in the article, as the extra info at the end is there to help you.
http://desk.feed-the-beast.com/index.php?/Knowledgebase/Article/View/9/0/basic-troubleshooting

If you're still having trouble, please post your complete client-side (launcher) console log to pastebin.com and link your paste URL here.
The console log is the one described under the first paragraph in this article. Please post your logs as described to prevent them from expiring.
http://desk.feed-the-beast.com/inde...29/1/what-log-do-you-need-where-can-i-find-it

Then post in this format:

Operating System, bit type:
Java version/update, bit type:
Launcher version:
Completed the troubleshooting guide (y/n):
Console log, pastebin.com link:
Description of the Issue:

If your console log indicates that you have not completed the guide exactly as I have prepared it, then I will ask you to do it again.

 

[RLGamer]

Operating System, bit type: Windows 8, 64 bit
Java version/update, bit type: Java 7, Update 45 64 bit
Launcher version: 1.2.9 [EDIT]: Now using 1.30 Launcher
Completed the troubleshooting guide (y/n): yes
Console log, pastebin.com link: http://pastebin.com/upe8Grpx
Description of the Issue: When I press launch in the launcher it just closes the launcher
NEW PASTE: http://pastebin.com/Xzqs21rR

 

[RLGamer]

I've tried tons of things, still not working.

 

[Ashzification]

Your paste is no longer valid.

 

[RLGamer]

Could it be a problem with the mods? I haven't changed then at all, but it could have downloaded wrong mabey?

 

[Ashzification]

Can't do anything without a valid log. Make a free pastebin account. Post a new log to pastebin and set it to never expire.

 

[RLGamer]

Ok, I think think this should work! I made an account and set it to not expire. http://pastebin.com/NS5vUC5m

 

[Ashzification]

There isn't any issue there. Please post a log from when the issue arises.

 

[RLGamer]

I'm not sure if there is a console log happening after I press launch. If it does, its too quick for me to to press Post to paste bin or screenshot it.

 

[Ashzification]

So how did you get the log the first time?

 

[RLGamer]

That log shows when I launch it. When I press launch, a log with lots of red words, shows for a split second, then it closes. The whole launcher freezes up, and I can't press post to pastebin in the split second. It's also to short to screen shot; I can't get it in time, It's just too fast. I don't know how I could get the log to you...

 

[Ashzification]

Your first log is not valid. I can't provide you any help without a new log.

 

[RLGamer]

The link I posted in a recent reply is the log that I get on startup of the launcher. My previous reply explains more. Here is the link again: http://pastebin.com/NS5vUC5m

 

[Ashzification]

And that log has no error in it.
Post the Minecraft or launcher log after the launcher closes.

 

[RLGamer]

How do I get the log from the console after the console closes?

 

[UniZero]

Modpack folder --> Minecraft --> crash reports

Check there. If they are then post the most recent.

 

[Ashzification]

How do I get the log from the console after the console closes?

I just offered two different logs instead of the console log.

 

[RLGamer]

The only two folders in minecraft, are config, and mods.

 

[UniZero]

The launcher has just updated check to see if anything has changed.