Falha na construção da brasa

Estou tentando executar um projeto Ember localmente:https://github.com/cosmicjs/ember-real-estate-website?files=1. Estou usando o pycharm 2017 usando o git-bash como meu terminal no win7. Tenho npm, nó e brasa instalados. No pycharm, meu projeto se parece com a captura de tela.

Após mudar para a pasta cósmica imobiliária:

  $ ember build

  Running without permission to symlink will degrade build performance.
  See http://ember-cli.com/user-guide/#windows for details.

  cleaning up...
  Build failed.
  The Broccoli Plugin: [Funnel: Funnel: index.html] failed with:
  Error: EISDIR: illegal operation on a directory, symlink 'e:\ember-real-estate-website\cosmic-real-estate\app' -> 'e:\ember-real-estate-website\cosmic-real-estate\tmp\funnel-input_base_path-ZStiRJkX.tmp'
      at Error (native)
      at Object.fs.symlinkSync (fs.js:1069:18)
      at symlinkWindows (e:\ember-real-estate-website\cosmic-real-estate\node_modules\symlink-or-copy\index.js:123:18)
      at symlinkOrCopySync (e:\ember-real-estate-website\cosmic-real-estate\node_modules\symlink-or-copy\index.js:63:5)
      at e:\ember-real-estate-website\cosmic-real-estate\node_modules\broccoli-plugin\read_compat.js:86:11
      at tryCatch (e:\ember-real-estate-website\cosmic-real-estate\node_modules\rsvp\dist\rsvp.js:539:12)
      at invokeCallback (e:\ember-real-estate-website\cosmic-real-estate\node_modules\rsvp\dist\rsvp.js:554:13)
      at publish (e:\ember-real-estate-website\cosmic-real-estate\node_modules\rsvp\dist\rsvp.js:522:7)
      at flush (e:\ember-real-estate-website\cosmic-real-estate\node_modules\rsvp\dist\rsvp.js:2414:5)
      at _combinedTickCallback (internal/process/next_tick.js:73:7)

  The broccoli plugin was instantiated at:
      at Funnel.Plugin (e:\ember-real-estate-website\cosmic-real-estate\node_modules\broccoli-plugin\index.js:7:31)
      at new Funnel (e:\ember-real-estate-website\cosmic-real-estate\node_modules\broccoli-funnel\index.js:58:10)
      at EmberApp._rawAppIndex (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\broccoli\ember-app.js:694:12)
      at EmberApp.index (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\broccoli\ember-app.js:678:20)
      at EmberApp.toArray (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\broccoli\ember-app.js:1661:12)
      at EmberApp.toTree (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\broccoli\ember-app.js:1684:38)
      at module.exports (e:\ember-real-estate-website\cosmic-real-estate\ember-cli-build.js:26:14)
      at Builder.setupBroccoliBuilder (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\models\builder.js:56:19)
      at new Builder (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\models\builder.js:30:10)
      at BuildTask.run (e:\ember-real-estate-website\cosmic-real-estate\node_modules\ember-cli\lib\tasks\build.js:15:19)

Há uma nova pasta node_modules visível também:

Como posso fazer isso funcionar?

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