Build fails under windows

[MaksimBurnin]

The snipet below generates an error in Windows 10:

Brocfile:

styleFiles = new BroccoliEyeglass([app.styles,imagesTree],{
  includePaths: app.sassPaths,
  cssDir: app.cssDir,
  discover: true,
  outputStyle: env == 'production' ? 'compressed' : 'nested'
});

Error:

 broccoli serve
Support for passing several trees to BroccoliSassCompiler has been removed.
Passing the trees to broccoli-merge-trees with the overwrite option set,
but you should do this yourself if you need to compile CSS files from them
or use the node-sass includePaths option if you need to import from them.
Serving on http://localhost:4200

Built with error:
Error: File to read not found or unreadable: C:/xampp/htdocs/project/tmp/eyeglass_compiler-input_base_path-bpb4bm47.tmp/C:/xampp/htdocs/project/tmp/eyeglass_compiler-input_base_path-bpb4bm47.tmp/project.scss
    at undefined:undefined:undefined
    at C:\xampp\htdocs\project\node_modules\broccoli-eyeglass\lib\broccoli_sass_compiler.js:667:11
    at Object.finallyHandler (C:\xampp\htdocs\project\node_modules\bluebird\js\main\finally.js:39:23)
    at Object.tryCatcher (C:\xampp\htdocs\project\node_modules\bluebird\js\main\util.js:26:23)
    at Promise._settlePromiseFromHandler (C:\xampp\htdocs\project\node_modules\bluebird\js\main\promise.js:510:31)
    at Promise._settlePromiseAt (C:\xampp\htdocs\project\node_modules\bluebird\js\main\promise.js:584:18)
    at Promise._settlePromises (C:\xampp\htdocs\project\node_modules\bluebird\js\main\promise.js:700:14)
    at Async._drainQueue (C:\xampp\htdocs\project\node_modules\bluebird\js\main\async.js:123:16)
    at Async._drainQueues (C:\xampp\htdocs\project\node_modules\bluebird\js\main\async.js:133:10)
    at Immediate.Async.drainQueues (C:\xampp\htdocs\project\node_modules\bluebird\js\main\async.js:15:14)
    at runCallback (timers.js:649:20)
    at tryOnImmediate (timers.js:622:5)
    at processImmediate [as _immediateCallback] (timers.js:594:5)

I have tried to disable discover, but the error is still the same

styleFiles = new BroccoliEyeglass([app.styles,imagesTree],{
  includePaths: app.sassPaths,
  cssDir: app.cssDir,
  discover: false,
  sourceFiles: ['project.scss'],
  outputStyle: env == 'production' ? 'compressed' : 'nested'
});

Both versions work well in both Linux and OSX

[MaksimBurnin]

So after some investigation, it looks to me that the root cause of the error is node-glob behaviour, it return values it always uses forward slash as a separator https://github.com/isaacs/node-glob#windows

The issue can be solved by using path.normalize in either filesInTree or removePathPrefix