Please help.  I am running windows 7, java version 8 update 51.  I installed forge 1.8 and 1.7.10, and now when I run minecraft with forge, it does not open.

 

log 1.7.10

 

[09:12:35] [main/INFO]: Setting user: talliban

[09:12:35] [main/INFO]: (Session ID is token:c0c84516ce944af087b90a38ec5082c9:3c598190360e4248a06e1baa8d3ecee8)

[09:12:39] [Client thread/INFO]: LWJGL Version: 2.9.0

[09:12:40] [Client thread/INFO]: Reloading ResourceManager: Default

[09:12:41] [sound Library Loader/INFO]: Sound engine started

[09:12:44] [Client thread/INFO]: Created: 512x256 textures/blocks-atlas

[09:12:44] [Client thread/INFO]: Created: 256x256 textures/items-atlas

[09:12:47] [MCO Availability Checker #1/ERROR]: Couldn't connect to Realms

[09:12:51] [Client thread/INFO]: Stopping!

 

log 1.8

 

[09:03:23] [Client thread/INFO]: Setting user: taliban

[09:03:24] [Client thread/INFO]: (Session ID is token:47a68071c9124dd1826c01c581902ece:cbfe635cd3bc4b01af9273fa439536c0)

[09:03:27] [Client thread/INFO]: LWJGL Version: 2.9.4

[09:03:27] [Client thread/INFO]: Reloading ResourceManager: Default

[09:03:27] [sound Library Loader/INFO]: Starting up SoundSystem...

[09:03:28] [Thread-6/INFO]: Initializing LWJGL OpenAL

[09:03:28] [Thread-6/INFO]: (The LWJGL binding of OpenAL.  For more information, see http://www.lwjgl.org)

[09:03:28] [Thread-6/INFO]: OpenAL initialized.

[09:03:28] [sound Library Loader/INFO]: Sound engine started

[09:03:29] [Twitch authenticator/ERROR]: Given twitch access token is invalid

[09:03:30] [Client thread/INFO]: Created: 512x512 textures-atlas

[09:03:34] [Client thread/INFO]: Stopping!

[09:03:34] [Client thread/INFO]: SoundSystem shutting down...

[09:03:34] [Client thread/WARN]: Author: Paul Lamb, www.paulscode.com

dont have, just the file latest.log and 2015-09-04-1.log.gz

I run minecraft with forge and the launcher doesn't make nothing.

 

I noticed that in .minecraft\versions\ only has a 1.7.10-Forge10.13.4.1492-1.7.10.json file, would not have to have also an .jar, in 1.8 also

 

 

 

 

I tried this method and it worked on 1.7.10 but only with Forge # 1208

http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/2206446-forge-1-6-4-1-7-2-java-8-compatibility-patch

 

with  -Xmx1G -Dforge.forceNoStencil=true

thanks for the help, i bought the game and work perfectly normal with forge 1.8.