Launcher Won't Open Any Modpacks

[ShaneZiggity]

Any time I try to launch a modpack, the launcher disappears and then reappears a few seconds later. I've tried both Attack of the B Team and Tekkit Classic. I'm using Windows 10, java 1.8.0_25 and have 3 GB of ram allocated. I tried going back to the latest version of java (1.8.0_101) and still nothing changed. I ran clearJavaEnvVars.bat as recommended on other posts, to no avail.

Console Log: http://pastebin.com/7eNBjwfM

Edited January 27, 2017 by ShaneZiggity

[Ktaww]

Quote

 

Same problem for me. Only thing that will launch is Vanilla. 10gb of ram allocated no virus programs.

[JaariAtmc]

1 hour ago, ShaneZiggity said:

Any time I try to launch a modpack, the launcher disappears and then reappears a few seconds later.

 

16 minutes ago, Ktaww said:

Only thing that will launch is Vanilla.

Do both of you have an NVIDIA card? The recent drivers update broke all minecraft versions except for 1.11 (aka vanilla).

Downgrade your drivers to before version 378.49 to fix your issues!

[ShaneZiggity]

Thanks! That solved my problem. I downloaded the update from 1/14/17 on Nvidia's website and it worked perfectly.

[CTrickle4300]

I am having this same problem as well. Every time I go to launch a mod-pack, the launcher disappears  and reappears like nothing happened. I currently have the latest version of Java. I tried installing the Nvidia's driver downgrade to usually fix this issue, but my computer does not contain a Nvidia graphics card. On launch of a mod-pack, I am brought with a "B#349] SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder" error message and results back to the launcher menu.  

 

Here is the crash report https://pastebin.com/kLXYAp5K

Here is the console log https://pastebin.com/HvzvhdqM

Thanks for the help!  

[iiBeara]

I'm having the same problem but i'm confused on how to fix it still...