安裝npm時收到警告

Question

npm WARN extract-text-webpack-plugin@1.0.1 requires a peer of webpack@^1.9.11 but none is installed. You must install peer dependencies yourself.
npm WARN karma-webpack@1.7.0 requires a peer of webpack@^1.4.0 but none is installed. You must install peer dependencies yourself.
npm WARN react-native@0.49.2 requires a peer of react@16.0.0-beta.5 but none is installed. You must install peer dependencies yourself.
npm WARN sass-loader@3.2.0 requires a peer of webpack@^1.12.6 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-middleware@1.12.0 requires a peer of webpack@^1.0.0 || ^2.0.0 || ^3.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-server@2.0.0-beta requires a peer of webpack@>=2.0.3-beta <3 but none is installed. You must install peer dependencies yourself.
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.2 (node_modules\fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.2: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

我在進行npm安裝時遇到上述警告。 雖然，這些只是警告，不會影響應用程序。 但是，我想知道導致這些警告的原因。

I am using npm `version 5.4.2`
node version is 6.11.4 
webpack 2.1.0-beta.22

Answer 1

首先，最后2條警告僅針對那些使用mac以外的用戶（即使我也無法解決它們）

現在出現其他警告。

您可以降級webpack版本或將所有內容升級到最新版本。

它們彼此兼容，因為我也做到了。

我認為升級所有組件是解決此問題的更好方法。

該模塊在升級npm-check時將很有幫助