Addon issue

Have a problem with addon (SWEP, to be exact) and the problem is that addon doesn’t do anything - swep doesn’t show in spawn menu and I can’t even give it to myself using the console.
Addon folder structure:

%models and materials folders% - everything is ok with them

Thanks :3.

Is there an error in the weapon?

Nope. If I put it in gmod folder, swep does work normally.

What is inside the info.txt?

	"name"		"Hammer"
	"version"	"1.0"
	"up_date"	"20/12/2011"
	"author_name"	"%name%"
	"author_url"   ""

	"author_email"	""
	"info"		"test swep"
	"override"	"0"