Forge 1.6.4 - 953

[MrPenguin]

I've been trying to mod in forge for a bit now but when I tried to run the install.bat I get this error

 

Download of minecraft_server.1.6.4.jar failed hash check, deleting abcf286a14f7a
ee82e8bf89270433509 ba3145656b1480122bd8759cecd7b7a1
Something failed verifying minecraft files, see log for details.
Decompile Exception: 1

 

I don't know what log it's referring so I can't seem to figure out what I'm doing wrong.

 

I'm running Java 8 JDK Update 5.

[LexManos]

Use the gradle system.