minecraft crashes with keinett immediately after the start

[Talneck93]

Minecraft crashes when I start the console and it says:

Ignoring visibility rule and showing launcher due to a game crash

Deleting C:\Users\Andrea\AppData\Roaming\.minecraft\versions\1.6.4-Forge9.11.1.965\1.6.4-Forge9.11.1.965-natives-1073066293576

[Talneck93]

Minecraft crashes when I start the console and it says:

Client> Errore: impossibile trovare o caricare la classe principale =

Game ended with bad state (exit code 1)

Ignoring visibility rule and showing launcher due to a game crash

Deleting C:\Users\Andrea\AppData\Roaming\.minecraft\versions\1.6.4-Forge9.11.1.965\1.6.4-Forge9.11.1.965-natives-902588919711