Unable to build Vue on Windows using npm/yarn run build

[remcohuijser]

Versions

Vue.js = 2.0.2
Node.js = 6.9.1
NPM = 4.0.2
Windows 10

Steps to reproduce

• Clone repo from GitHub
• npm install
• npm run build

or

• Clone repo from GitHub
• yarn install
• yarn run build

What is Expected?

The expected behavior is that all versions of vue are build in the dist folder.

What is actually happening?

Error: Could not load C:\Development\github\vue\src\core/index (imported by C:\Development\github\vue\src\entries\web-runtime.js): ENOENT: no such file or directory, open 'C:\Development\github\vue\src\core\index'
at C:\Development\github\vue\node_modules\rollup\dist\rollup.js:8833:10
at process._tickCallback (internal/process/next_tick.js:103:7)
at Module.runMain (module.js:606:11)
at run (bootstrap_node.js:394:7)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:509:3

Workaround

It appears that all imports that use the aliases defined in build/alias.js file do not work when the extension .js is not used. When .js is added to all imports, the build succeeds.

[defcc]

Seems to be a bug of rollup-plugin-alias. rollup/rollup-plugin-alias#11

[yyx990803]

Closing since the source of the issue is in a dependency, and is not a bug in the framework itself.

[fenduru]

I'm trying to file a PR for Vue, but I cannot get it to build - is there any recommendation on how to move forward?