【发布时间】：2021-02-20 08:58:36
【问题描述】：
首先我收到这个错误：optimize-css-assets-webpack-plugin@5.0.4 requires a peer of webpack@^4.0.0，然后我尝试这个：npm i optimize-css-assets-webpack-plugin@latest，但得到了那个消息：terser-webpack-plugin@5.0.3 requires a peer of webpack@^5.1.0
我正在为我的问题寻找一个具体的答案，但我认为对其他人有一个通用的方式来思考如何处理任何其他 NPM 包中的类似问题也是有用的
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当我尝试在同一个 repo 中使用 °NEST JS° 和 °REACT° 和 °MY TS WORKFLOW° 时，我遇到了这个一般性问题...
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我不知道我是否必须深入研究每个可能的依赖关系树，或者我是否必须打开多个问题，或者我是否必须自己（一个人）处理这些问题...
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下面试图获得零警告消息安装 3 个版本的 webpack
next@5.0.0-rc.6lates@5.4.0和4@4.44.2
npm install webpack@next # + webpack@5.0.0-rc.6
npm WARN babel-loader@8.1.0 requires a peer of webpack@>=2 but none is installed. You must install peer dependencies yourself.
npm WARN css-loader@5.0.1 requires a peer of webpack@^4.27.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN eslint-webpack-plugin@2.2.0 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN file-loader@6.2.0 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN html-webpack-plugin@4.5.0 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN mini-css-extract-plugin@1.3.0 requires a peer of webpack@^4.4.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN optimize-css-assets-webpack-plugin@5.0.4 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN postcss-loader@4.0.4 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN sass-loader@10.0.5 requires a peer of webpack@^4.36.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN style-loader@2.0.0 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN terser-webpack-plugin@5.0.3 requires a peer of webpack@^5.1.0 but none is installed. You must install peer dependencies yourself.
npm WARN url-loader@4.1.1 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-middleware@3.7.2 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-server@3.11.0 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-manifest-plugin@2.2.0 requires a peer of webpack@2 || 3 || 4 but none is installed. You must install peer dependencies yourself.
npm WARN workbox-webpack-plugin@6.0.0-alpha.3 requires a peer of webpack@^4.4.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN terser-webpack-plugin@4.2.3 requires a peer of webpack@^4.0.0 || ^5.0.0 but none is installed. You must install peer dependencies yourself.
npm install webpack@latest # + webpack@5.4.0
npm WARN optimize-css-assets-webpack-plugin@5.0.4 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-dev-middleware@3.7.2 requires a peer of webpack@^4.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN webpack-manifest-plugin@2.2.0 requires a peer of webpack@2 || 3 || 4 but none is installed. You must install peer dependencies yourself.
npm install webpack@4 # + webpack@4.44.2
npm WARN deprecated chokidar@2.1.8: Chokidar 2 will break on node v14+. Upgrade to chokidar 3 with 15x less dependencies.
npm WARN deprecated fsevents@1.2.13: fsevents 1 will break on node v14+ and could be using insecure binaries. Upgrade to fsevents 2.
npm WARN notsup Unsupported engine for watchpack-chokidar2@2.0.0: wanted: {"node":"<8.10.0"} (current: {"node":"15.1.0","npm":"6.14.8"})
npm WARN notsup Not compatible with your version of node/npm: watchpack-chokidar2@2.0.0
npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@^1.2.7 (node_modules/watchpack-chokidar2/node_modules/chokidar/node_modules/fsevents):
npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.2.13: wanted {"os":"darwin","arch":"any"} (current: {"os":"linux","arch":"x64"})
npm WARN terser-webpack-plugin@5.0.3 requires a peer of webpack@^5.1.0 but none is installed. You must install peer dependencies yourself.
【问题讨论】：
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npm@7 似乎已经修复了所有的错误信息
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npm@7 自动安装 peerdependancy，所以你不会看到这个错误，但这不是解决这个错误的方法
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刚刚出现这个问题，并且能够通过删除
package-lock.json和node_modules并再次运行npm i来解决它。
标签： node.js npm webpack versioning dependency-management