Infuriating DUB/DMD build bug.

[Mike Parker]

On Thursday, 5 October 2017 at 21:48:20 UTC, WhatMeWorry wrote:

> With writing files, that's usually a permissions thing?  But 
> all the other 8 packages build fine?
>
> Note: I had a similar problem with derelict-assimp3 package, so 
> I went to an entirely different system and cloned my project.  
> But now it fails with the same error, but with
> a different package.

Looks like it may be a system error as a result of the path being 
too long. I've encountered that a couple times over the years 
when building projects with dub. What I suggest you try is to 
remove the offending package(s) from 
AppData/Roaming/dub/packages, create a new directory off C: (say, 
C:\dub, manually fetch the packages you need into that directory 
and use `dub add-local` on them (see an example in the derelict 
docs [1]), then try to build your project again and see what 
happens.