Hello. I'm a Minecraft player and I want to play with some mods. I'm a MacOs user and I tried to install Forge 1.7.10-installer.jar, but when I double click on the file the decompression utility starts and creates a new folder. I already installed Java Run Environment and JDK version 8_121 and I still have the same problem.
Could you help me with the problem?

(Notice: I download all the installer for the Forge and even the universal one)

 

Thank you.

Diesieben07 Hello. I even try with the new Forge version and they don't work either.

I tried that command too and sudo too and I still be nothing. 

Could you tell me what version of java do I need?

May that's the problem.

I'm sorry. I tried to say "nothing happen". 
The error saids: No main class found or loaded.

jar- != -jar

 

You misplaced the ' - ' character.

Edited February 8, 20178 yr by larsgerrits

Like this?

 

 

No, it's java -jar <filename>, with the dash in front of "jar".

I already did it. I wrote java -jar without the dash in front of jar and that work. 
Thank you very much for your help.