前置说明：
日期：2018年6月5日
环境：win7系统、vscode、vue2.5.0源代码
1）问题现象：
D:\workspace\html5\everyday2\vue>npm run dev
> [email protected] dev D:\workspace\html5\everyday2\vue
> rollup -w -c build/config.js --environment TARGET:web-full-dev
rollup v0.50.0
bundles D:\workspace\html5\everyday2\vue\src\platforms\web\entry-runtime-with-compiler.js → dist\vue.js...
[!] Error: Could not load D:\workspace\html5\everyday2\vue\src\core/config (imported by D:\workspace\html5\everyday2\vue\src\platforms\web\entry-runtime-with-compiler.js): ENOENT: no such file or directory, open 'D:\workspace\html5\everyday2\vue\src\core\config'
Error: Could not load D:\workspace\html5\everyday2\vue\src\core/config (imported by D:\workspace\html5\everyday2\vue\src\platforms\web\entry-runtime-with-compiler.js): ENOENT: no such file or directory, open 'D:\workspace\html5\everyday2\vue\src\core\config'
at load.catch.err (D:\workspace\html5\everyday2\vue\node_modules\rollup\dist\rollup.js:9973:11)
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:182:7)
at Function.Module.runMain (internal/modules/cjs/loader.js:697:11)
at startup (internal/bootstrap/node.js:201:19)
at bootstrapNodeJSCore (internal/bootstrap/node.js:516:3)
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] dev: `rollup -w -c build/config.js --environment TARGET:web-full-dev`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] dev script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.
npm ERR! A complete log of this run can be found in:
npm ERR! C:\Users\lenovo\AppData\Roaming\npm-cache\_logs\2018-06-05T10_56_08_535Z-debug.log
2）问题解决方案：
https://segmentfault.com/q/1010000007561786