Error writing file a *.obj

[dummy via Digitalmars-d-learn]

On Sunday, 7 May 2017 at 14:01:32 UTC, dummy wrote:
> Hi :)
>
>   - OS: Winodws 10 Pro KN
>   -  DMD: 2.073.2(ofcourse, i tried dmd of 2.074.x version. but 
> same result)
>
> When i build some application with dub, i got this error:
> ----------------------------------------------------------------------
>> dub build
> xx ~master: building configuration "application"...
> Error: Error writing file 
> '.dub\build\application-debug-windows-x86-dmd_2073-FEC52DAD217DFEA46ECF98CA4240FA06\xx.obj'
> dmd failed with exit code 1
> ----------------------------------------------------------------------
>
>
>
> What's mean? my dub.json here:
> ----------------------------------------------------------------------
> {
> 	"name": "xx",
> 	"authors": [
> 		"dummy"
> 	],
> 	"description": "A minimal D application.",
> 	"copyright": "Copyright © 2017, dummy",
> 	"license": "proprietary",
> 	"dependencies": {
> 		"requests": "~>0.4.1"
> 	},
> 	"subConfigurations": {
> 		"requests": "vibed"
> 	}
> }
> ----------------------------------------------------------------------
> app.d is default file, so i didn't modify it.


+ And, dmd got same result:
----------------------------------------------------------------------
> dmd app.d
Error: Error writing file 'app.obj'
----------------------------------------------------------------------

i have no idea..