I am not able to play modpacks

[Lycantite]

Title:

I am not able to play modpacks​

Launcher Version:

1.4.6​

Modpack:

TolkienCraft II​

Modpack Version:

2.4.10​

Log Link:

http://paste.feed-the-beast.com/view/1e2dc2e5​

Details of the issue:

Every time I click on the launch button, it looks like it is going to load but then it stops and returns to launcher page. Any suggestions?​

 

[skunkdonkey]

Maybe update to java 8?

 

[Lycantite]

I tried that but it wouldn't work. The same thing happened. Here's the log. http://paste.feed-the-beast.com/view/5f3dada8

 

[RJS]

Have you tried deleting the pack and running a fresh install, keeping a copy of your world save backed up elsewhere?

 

[Mason593]

I get this same error. It seems to be something with 64-bit java and the pack not being able to work together properly. I use Java 8 Update 45 for the 64-bit system. Posting my own support ticket now.