我试图运行一个从github下载的项目。不幸的是，在npm install期间显示了以下警告。我试图根据这个问题更改版本。但是，我遇到了一个问题，因为某些软件包需要多个版本的其他软件包。请考虑以下两行：
npm WARN @angular/cdk@2.0.0-beta.10 requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/forms@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
因此，安装某些包会导致依赖项列表大幅增长。
有人有解决方案吗？
npm WARN @angular/animations@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/cdk@2.0.0-beta.10 requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/cdk@2.0.0-beta.10 requires a peer of @angular/common@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/compiler@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/compiler-cli@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/forms@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/forms@4.3.6 requires a peer of @angular/common@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/forms@4.3.6 requires a peer of @angular/platform-browser@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/http@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/http@4.3.6 requires a peer of @angular/platform-browser@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/material@2.0.0-beta.10 requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/material@2.0.0-beta.10 requires a peer of @angular/common@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/platform-browser-dynamic@2.4.10 requires a peer of @angular/compiler@2.4.10 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/platform-server@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/platform-server@4.3.6 requires a peer of @angular/common@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/platform-server@4.3.6 requires a peer of @angular/platform-browser@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/router@4.3.6 requires a peer of @angular/core@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/router@4.3.6 requires a peer of @angular/common@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/router@4.3.6 requires a peer of @angular/platform-browser@4.3.6 but none is installed. You must install peer dependencies yourself.
npm WARN angularfire2@2.0.0-beta.7-pre requires a peer of @angular/compiler@^2.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN extract-text-webpack-plugin@3.0.0 requires a peer of webpack@^3.1.0 but none is installed. You must install peer dependencies yourself.
以下是package.json的内容：
{
"name": "fireplace",
"version": "0.0.0",
"license": "MIT",
"angular-cli": {},
"scripts": {
"ng": "ng",
"start": "ng serve",
"test": "ng test",
"lint": "ng lint",
"e2e": "ng e2e"
},
"repository": {
"type": "git",
"url": "https://github.com/name/fireplace.git"
},
"author": "name",
"bugs": {
"url": "https://github.com/name/fireplace/issues"
},
"homepage": "https://github.com/name/fireplace",
"private": true,
"dependencies": {
"@angular/animations": "^4.0.0-rc.2",
"@angular/common": "^4.0.0-rc.2",
"@angular/compiler": "^4.0.0-rc.2",
"@angular/compiler-cli": "^4.0.0-rc.2",
"@angular/core": "^4.0.0-rc.2",
"@angular/flex-layout": "^2.0.0-rc.1",
"@angular/forms": "^4.0.0-rc.2",
"@angular/http": "^4.0.0-rc.2",
"@angular/material": "^2.0.0-beta.2",
"@angular/platform-browser": "^4.0.0-rc.2",
"@angular/platform-browser-dynamic": "^4.0.0-rc.2",
"@angular/platform-server": "^4.0.0-rc.2",
"@angular/router": "^4.0.0-rc.2",
"@types/lodash": "^4.14.53",
"angular2-google-maps": "^0.17.0",
"angular2-moment": "^1.2.0",
"angularfire2": "^2.0.0-beta.8",
"core-js": "^2.4.1",
"d3": "^4.7.1",
"d3-cloud": "^1.2.4",
"firebase": "^3.6.10",
"hammerjs": "^2.0.8",
"lodash": "^4.17.4",
"rxjs": "^5.2.0",
"ts-helpers": "^1.1.1",
"zone.js": "^0.7.6"
},
"devDependencies": {
"@angular/cli": "^1.0.0-rc.1",
"@angular/compiler-cli": "^2.4.0",
"@types/jasmine": "2.5.38",
"@types/node": "~6.0.60",
"codelyzer": "~2.0.0",
"jasmine-core": "2.5.2",
"karma": "~1.4.1",
"karma-chrome-launcher": "~2.0.0",
"karma-cli": "~1.0.1",
"karma-jasmine": "~1.1.0",
"karma-jasmine-html-reporter": "^0.2.2",
"karma-coverage-istanbul-reporter": "^0.2.1",
"protractor": "~5.1.0",
"ts-node": "~2.0.0",
"tslint": "~4.4.2",
"typescript": "^2.2.1",
"webpack": "^2.2.1"
}
}
ng serve返回(我只粘贴了开头和结尾)：
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/bidi/index.d.ts (8,99): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/portal/portal.d.ts (8,85): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/portal/portal-directives.d.ts (8,76): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/portal/dom-portal-host.d.ts (8,31): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/ripple/ripple-renderer.d.ts (9,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/ripple/ripple-renderer.d.ts (10,31): Cannot find module '@angular/cdk/scrolling'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/ripple/ripple.d.ts (9,31): Cannot find module '@angular/cdk/scrolling'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/ripple/ripple.d.ts (10,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/platform/platform.d.ts (8,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/keyboard/keycodes.d.ts (8,146): Cannot find module '@angular/cdk/keycodes'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (1,61): Cannot find module '@angular/cdk/coercion'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (2,49): Cannot find module '@angular/cdk/observers'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (3,32): Cannot find module '@angular/cdk/collections'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (9,15): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (10,15): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/core.d.ts (14,252): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/autocomplete/autocomplete.d.ts (10,44): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/autocomplete/autocomplete-trigger.d.ts (10,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/autocomplete/autocomplete-trigger.d.ts (11,67): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/button/button.d.ts (9,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/a11y/focus-key-manager.d.ts (8,50): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/chips/chip-list.d.ts (10,33): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/chips/chip-list.d.ts (11,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog-config.d.ts (9,27): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog-container.d.ts (10,86): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog-container.d.ts (11,34): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog-ref.d.ts (8,28): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog.d.ts (10,31): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/dialog/dialog.d.ts (11,62): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/datepicker/datepicker.d.ts (9,67): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/datepicker/datepicker.d.ts (10,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/grid-list/grid-list.d.ts (10,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/input/autosize.d.ts (10,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/input/input.d.ts (10,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/menu/menu-panel.d.ts (10,27): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/menu/menu-directive.d.ts (14,27): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/menu/menu-trigger.d.ts (9,43): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/menu/menu-trigger.d.ts (10,67): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/select/select.d.ts (10,33): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/select/select.d.ts (11,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/select/select.d.ts (12,109): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/select/select.d.ts (14,32): Cannot find module '@angular/cdk/collections'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/select/select.d.ts (19,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/core/a11y/focus-trap.d.ts (8,95): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/slider/slider.d.ts (10,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/slide-toggle/slide-toggle.d.ts (9,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar-config.d.ts (9,36): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar-config.d.ts (10,27): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar-container.d.ts (10,70): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar-ref.d.ts (8,28): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar.d.ts (9,25): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar.d.ts (10,31): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/snack-bar/snack-bar.d.ts (11,31): Cannot find module '@angular/cdk/a11y'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/sort/sort-header.d.ts (9,30): Cannot find module '@angular/cdk/table'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/table/cell.d.ts (9,84): Cannot find module '@angular/cdk/table'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/table/table.d.ts (1,26): Cannot find module '@angular/cdk/table'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/table/row.d.ts (1,66): Cannot find module '@angular/cdk/table'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-label.d.ts (9,41): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-body.d.ts (10,53): Cannot find module '@angular/cdk/portal'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-body.d.ts (11,43): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-header.d.ts (9,43): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-nav-bar/tab-nav-bar.d.ts (9,31): Cannot find module '@angular/cdk/scrolling'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-nav-bar/tab-nav-bar.d.ts (10,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tabs/tab-nav-bar/tab-nav-bar.d.ts (11,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tooltip/tooltip.d.ts (10,34): Cannot find module '@angular/cdk/scrolling'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tooltip/tooltip.d.ts (12,32): Cannot find module '@angular/cdk/bidi'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tooltip/tooltip.d.ts (13,26): Cannot find module '@angular/cdk/platform'.
ERROR in /Users/username/Projects/fireplace/node_modules/@angular/material/typings/tooltip/tooltip.d.ts (14,132): Cannot find module '@angular/cdk/overlay'.
ERROR in /Users/username/Projects/fireplace/src/auth/auth.module.ts (24,24): Property 'forRoot' does not exist on type 'typeof MaterialModule'.
ERROR in /Users/username/Projects/fireplace/src/common/data.model.ts (25,14): Type 'Feed' has no properties in common with type 'IFeed'.
ERROR in /Users/username/Projects/fireplace/src/common/data.model.ts (32,14): Type 'Like' has no properties in common with type 'ILike'.
ERROR in /Users/username/Projects/fireplace/src/common/data.model.ts (39,14): Type 'Follower' has no properties in common with type 'IFollower'.
ERROR in /Users/username/Projects/fireplace/src/sign-in/sign-in.module.ts (21,24): Property 'forRoot' does not exist on type 'typeof MaterialModule'.
ERROR in /Users/username/Projects/fireplace/src/word-cloud/word-cloud.component.ts (192,25): Property 'items' does not exist on type '{}'.
ERROR in /Users/username/Projects/fireplace/src/word-cloud/word-cloud.component.ts (192,51): Property 'items' does not exist on type '{}'.
ERROR in Error encountered resolving symbol values statically. Calling function 'OpaqueToken', function calls are not supported. Consider replacing the function or lambda with a reference to an exported function, resolving symbol FirebaseUserConfig in /Users/username/Projects/fireplace/node_modules/angularfire2/tokens.d.ts, resolving symbol AngularFireModule.initializeApp in /Users/username/Projects/fireplace/node_modules/angularfire2/angularfire2.d.ts, resolving symbol FirebaseModule in /Users/username/Projects/fireplace/src/firebase/firebase.module.ts, resolving symbol AppModule in /Users/username/Projects/fireplace/src/app/app.module.ts, resolving symbol AppModule in /Users/username/Projects/fireplace/src/app/app.module.ts
ERROR in ./node_modules/@angular/material/@angular/material.es5.js
Module not found: Error: Can't resolve '@angular/cdk/a11y' in '/Users/username/Projects/fireplace/node_modules/@angular/material/@angular'
resolve '@angular/cdk/a11y' in '/Users/username/Projects/fireplace/node_modules/@angular/material/@angular'
Parsed request is a module
using description file: /Users/username/Projects/fireplace/node_modules/@angular/material/package.json (relative path: ./@angular)
Field 'browser' doesn't contain a valid alias configuration
after using description file: /Users/username/Projects/fireplace/node_modules/@angular/material/package.json (relative path: ./@angular)
resolve as module
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table.ts]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table.js]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table.ts]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table.js]
[/Users/username/Projects/fireplace/node_modules/@angular/cdk/table]
[/Users/username/Projects/fireplace/src/@angular/cdk/table]
[/Users/username/Projects/fireplace/src/@angular/cdk/table.ts]
[/Users/username/Projects/fireplace/src/@angular/cdk/table.js]
[/Users/username/Projects/fireplace/src/@angular/cdk/table]
[/Users/username/Projects/fireplace/src/@angular/cdk/table]
[/Users/username/Projects/fireplace/src/@angular/cdk/table.ts]
[/Users/username/Projects/fireplace/src/@angular/cdk/table.js]
[/Users/username/Projects/fireplace/src/@angular/cdk/table]
@ ./node_modules/@angular/material/@angular/material.es5.js 34:0-218
@ ./src/app/app.module.ts
@ ./src/main.ts
@ multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts
ERROR in ./node_modules/css-loader?{"sourceMap":false,"importLoaders":1}!./node_modules/postcss-loader?{"ident":"postcss"}!./node_modules/sass-loader/lib/loader.js?{"sourceMap":false,"precision":8,"includePaths":[]}!./src/theme.scss
Module build failed:
@import '~@angular/material/core/theming/all-theme';
^
File to import not found or unreadable: ~@angular/material/core/theming/all-theme.
Parent style sheet: stdin
in /Users/username/Projects/fireplace/src/theme.scss (line 1, column 1)
Error:
@import '~@angular/material/core/theming/all-theme';
^
File to import not found or unreadable: ~@angular/material/core/theming/all-theme.
Parent style sheet: stdin
in /Users/username/Projects/fireplace/src/theme.scss (line 1, column 1)
at options.error (/Users/username/Projects/fireplace/node_modules/node-sass/lib/index.js:291:26)
@ ./src/theme.scss 4:14-186
@ multi ./src/theme.scss ./src/styles.scss
webpack: Failed to compile.
"A 需要 B 的对等体，但没有安装任何对等体"。将其视为"A 需要 B 的对等方之一，但该对等方未安装，我们 没有告诉你你需要哪个B的同行。
对等依赖项的自动安装已在 npm 3 中显式删除。
NPM 博客
v3 发行说明
因此，您无法使用 npm 3 及更高版本自动安装对等依赖项。
更新的解决方案：
对每个对等依赖项使用以下依赖项来安装该依赖项并删除错误
npm install --save-dev xxxxx
已弃用的解决方案：
您可以使用 npm-install-peers 来查找和安装所需的对等依赖项。
npm install -g npm-install-peersnpm-install-peers如果您在更新任何软件包的版本后收到此错误，请删除
node_modules目录并重新安装软件包npm install或npm cache clean并npm install。
对于表单的每个错误：
npm WARN {something} requires a peer of {other thing} but none is installed. You must install peer dependencies yourself.
您应该：
$ npm install --save-dev "{other thing}"
注意：如果{other thing}有空格，则需要引号，如以下示例所示：
npm WARN rollup-plugin-uglify@6.0.3 requires a peer of rollup@>=0.66.0 <2 but none was installed.
解决方法为：
$ npm install --save-dev "rollup@>=0.66.0 <2"
使用 npm-install-peers 的公认答案不起作用，也没有删除node_modules并重建。要运行的答案
npm install --save-dev @xxxxx/xxxxx@latest
对于每一个，xxxxx 指的是对等警告中的确切文本，都有效。我只有四个警告，如果我有十几个或更多，那么编写命令脚本可能是个好主意。
npm install -g npm-install-peers
它将添加所有缺少的对等体并删除所有错误
我遇到了类似的问题，并在运行这些说明后解决了！
npm install npm -g
npm install --save-dev @angular/cli@latest
npm install
npm start
自从 npm7 发布以来，您现在可以自动安装对等依赖项。 他们制定一种算法来确保在node_modules树中对等依赖方的位置或上方找到有效匹配的对等依赖关系。如果是这种情况，则他们正确添加对等依赖关系。 你只需要安装 npm 7
npm i -g npm@7
查找更多链接
我在React-Firebase-file-uploader上遇到了同样的问题。
npm i {something} --legacy-peer-deps #worked fine for me
就我而言，以下命令对我有用：
sudo npm cache clean --force
sudo npm install -g npm
sudo apt install libssl1.0-dev
sudo apt install nodejs-dev
sudo apt install node-gyp
sudo apt install npm
之后，如果您遇到"找不到模块'bcrypt'，那么您可以使用以下命令解决此问题：
npm install node-gyp -g
npm install bcrypt -g
npm install bcrypt --save
希望它也能为你工作。
AWS CDK 也有同样的问题，但对我来说，它有助于在npm install之前rm -rf node_modules。
还要确保所有 aws-cdk 组件都在同一版本中。
我不知道是否有人尝试过这个新软件包：
npm install -g install-peerdeps
这是npm install -g npm-install-peers的替代方案
来源链接：https://www.npmjs.com/package/install-peerdeps
这里的总边缘情况：手动安装 Arch AUR PKGBUILD 文件时遇到了这个问题。就我而言，我需要删除"pkg"，"src"和"node_modules"文件夹，然后它构建得很好，没有这个npm错误。
我建议使用这个叫做depcheck的工具。根据作者的定义：
Depcheck 是一个工具，用于分析项目中的依赖关系以查看： 如何使用每个依赖项，哪些依赖项无用，以及哪些依赖项无用 包.json 中缺少依赖项
https://www.npmjs.com/package/depcheck
你只需要依赖一个主要版本的 angular，所以根据 angular 2.x 更新所有模块：
- 将@angular/弹性布局更新为 ^2.0.0-beta.9
- 将@angular/材料更新至 ^2.0.0-beta.12
- 将 Angularfire2 更新为 ^4.0.0-RC.2
- 更新区域.js到 ^0.8.18
- 将 webpack 更新到 ^3.8.1
- 添加 @angular/cdk@2.0.0-beta.12(@angular/材料需要)
- 将 Angular2-google-maps 替换为 @agm/core@1.0.0-beta.1(新名称)
安装角度材料 CDK 时遇到同样的问题：
npm install --save @angular/material @angular/cdk @angular/animations
添加如下所示-dev对我有用：
npm install --save-dev @angular/material @angular/cdk @angular/animations
尝试使用以下命令安装 multer。它对我有用。
npm i --save-dev @types/multer
npm i [package-name] --force
使用 --力。