Error opening <dir> (Check for write enable), but the directory exists?

Hi so I am experiencing this error… (trying to compile a model from tutorial here https://www.youtube.com/watch?v=LWvAkJryAhI)



Compiling with Crowbar 0.44.0.0: "C:\Users\Krejzifik\Desktop\gmmodelling\curproject\cube.qc" ...

  Compiling ".\cube.qc" ...
    qdir:    "c:\users\krejzifik\desktop\gmmodelling\curproject\"
    gamedir: "E:\Steamgrynadfolder\Steamgry\steamapps\common\GarrysMod\garrysmod\"
    g_path:  "cube.qc"
    Building binary model files...
    Working on "cube.qc"
    SMD MODEL cube.smd
    SMD MODEL anims\cube_idle.smd
    SMD MODEL cube_phys.smd
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Model has 2-dimensional geometry (less than 0.500 inches thick on any axis)!!!
    WARNING: Error with convex elements of cube_phys.smd, building single convex!!!!
    Model has 1 convex sub-parts
    Collision model completed.
    Computed Mass: 9.80 kg
    Nazwa pliku, nazwa katalogu lub skˆadnia etykiety woluminu jest niepoprawna.
    ---------------------
    writing E:\Steamgrynadfolder\Steamgry\steamapps\common\GarrysMod\garrysmod\models/C:\Users\Krejzifik\Desktop\gmmodelling\curproject\cube.mdl:
    Error opening E:\Steamgrynadfolder\Steamgry\steamapps\common\GarrysMod\garrysmod\models/C:\Users\Krejzifik\Desktop\gmmodelling\curproject\cube.mdl! (Check for write enable)
    
  ... Compiling ".\cube.qc" finished. Check above for any errors.

... Compiling with Crowbar 0.44.0.0: "C:\Users\Krejzifik\Desktop\gmmodelling\curproject\cube.qc" finished.



but the file paths are existing (as the source wiki says “Studiomdl won’t create folders that don’t exist; you must manually create a path to your .mdl before compiling.”)
here is qc file



$modelname	"C:\Users\Krejzifik\Desktop\gmmodelling\curproject\cube.mdl"

$scale 1
$model "cube" "cube.smd"

$surfaceprop	"metal"
$cdmaterials	"materials\"

$sequence idle	"anims\cube_idle.smd" fps 1

$collisionmodel	"cube_phys.smd" {
	$automass
	$inertia 1
	$damping 0
	$rotdamping 0
	$concave
}


This is not a valid directory. You have entered it wrong.

erm tf? http://imgur.com/a/QLHTM

$modelname is a relative path.

Thank you

[editline]6th September 2017[/editline]

Now after compiling and creating a texture I get this error in console



Model missing: models/cube.mdl


qc



$modelname	"cube.mdl"

$scale 1

$body 1 "cube.smd"
$model "cube" "cube.smd"

$surfaceprop	"metal"
$cdmaterials	"cube\"

$sequence idle	"anims\cube_idle.smd" fps 1

$collisionmodel	"cube_phys.smd" {
	$automass
	$inertia 1
	$damping 0
	$rotdamping 0
	$concave
}


vmt



"VertexLitGeneric"
{
	"basetexture" "cube\cube"
	"surfaceprop" "metal"
}