Ftb launching then closing after a minute or so.

[dfrer]

So whenever I launch a ftb pack doesnt matter what they load and it shows the Mojang loading screen, then it comes up with some errors in the console then it closes and thats it. I dont have enough time to grab the log from the console. Any ideas?. I also updated java just a while ago and thats when the problem started. Thx for the help

 

[Tristam Izumi]

There's a config option to re-open the launcher when you exit Minecraft. Turn that on. Then, after it crashes, the console should stay open, which will enable you to post the console log to pastebin.

 

[dfrer]

There's a config option to re-open the launcher when you exit Minecraft. Turn that on. Then, after it crashes, the console should stay open, which will enable you to post the console log to pastebin.

http://pastebin.com/cqmkRVAE
Hope thats what you needed.

 

[Tristam Izumi]

2014-01-29 11:53:31 [INFO] [STDOUT] JVM Flags: 4 total; -Xms256M -Xmx1536M -XXermSize=256m -Xmx512M

You're picking up an extra -Xmx argument. This is likely a global Java environment variable.

1) Right click on "Computer" and go to Properties.
2) Go to the Advanced tab, and click on "Environmental Variables".
3) Scroll down through the System Variables until you find one for Java and Delete it/Edit it so it no longer contains "-XmX512M"
4) Try running packs through the FTB launcher again.