npm加載包報錯 ：syscall access

 1 $ npm install --save-dev babel-plugin-syntax-dynamic-import
 2 npm WARN checkPermissions Missing write access to D:\sword\react1\r1\node_modules\fsevents
 3 npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.0.0 (node_modules\chokidar\node_modules\fsevents):
 4 npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})
 5 
 6 npm ERR! path D:\sword\react1\r1\node_modules\fsevents
 7 npm ERR! code ENOENT
 8 npm ERR! errno -4058
 9 npm ERR! syscall access
10 npm ERR! enoent ENOENT: no such file or directory, access 'D:\sword\react1\r1\node_modules\fsevents'
11 npm ERR! enoent This is related to npm not being able to find a file.
12 npm ERR! enoent
13 
14 npm ERR! A complete log of this run can be found in:
15 npm ERR!     F:\nodejs\node_cache\_logs\2017-10-30T04_43_57_804Z-debug.log

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今天嘗試打包react項目的時候 ，因爲router4打包比較麻煩。在文檔

https://github.com/ReactTraining/react-router/blob/master/packages/react-router-dom/docs/guides/code-splitting.md

中提到使用babel-plugin-syntax-dynamic-import and react-loadable

可是在加載import插件的時候，報錯syscall access ，github一查，發現是個偶爾出現但尚沒有好的解決方案。。網友們要麼回退版本要麼用yarn。。。

我也是醉了

錯誤的大意是找不到module中的fsevents文件，但這就奇怪了，這個包的頁面上並未提到有什麼依賴關係，也不多是個人node中文件丟失

後來發現改用cnpm加載就沒問題...

前端有時候就是會遇到這類weird的問題。。。