Infinity 1.5.1 doesn't launch at all

[MagikStiix]

Title:

Infinity 1.5.1 doesn't launch at all​

Launcher Version:

1.4.7​

Modpack:

Infinity​

Modpack Version:

1.5.1​

Log Link:

http://paste.feed-the-beast.com/view/5039c172​

Details of the issue:

I just downloaded the launcher then the modpack, and, after many tries (and java update, increase allocated ram, download a second time ...), the modpack just instantly crash / didn't want to open at all. Here the log.

PS : FTB folder is not in the same hard drive as .minecraft
PS2 : I already played others modpacks and nothing like this happened.​

 

[MagikStiix]

up

Infact, all modpacks have the same issue, i can't launch any modpack.

 

[jikuja]

On the launcher go to options then click the force update button, then launch the modpack