Javascript npm WARN ... 需要 ... 的同级，但没有安装。您必须自己安装对等依赖项

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I tried to run a project downloaded from github. Unfortunately, during npm installthe following warnings were shown. I tried to change the version based on this question. However, I had a problem, because some packages require multiple versions other packages. Consider these two lines:

我试图运行一个从github下载的项目。不幸的是，在npm install以下警告期间显示。我试图根据这个问题更改版本。但是，我遇到了一个问题，因为有些软件包需要其他软件包的多个版本。考虑这两行：

npm WARN @angular/[email protected] requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.

npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.

So, installing some packages causes the list of dependencies to grow substantially.

因此，安装一些软件包会导致依赖项列表大幅增长。

Does anyone have a solution?

有没有人有办法解决吗？

npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/common@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/core@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/common@^4.3.0 but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN @angular/[email protected] requires a peer of @angular/[email protected] but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of @angular/compiler@^2.0.0 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of webpack@^3.1.0 but none is installed. You must install peer dependencies yourself.

Here are the contents of package.json:

以下是内容package.json：

{
  "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 servereturns(I pasted only the beginning and the end):

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.

Answer 1

回答by Ridham Tarpara

"A requires a peer of B but none was installed". Consider it as "A requires one of B's peers but that peer was not installed and we're not telling you which of B's peers you need."

“A 需要 B 的对等点，但没有安装”。将其视为“A 需要 B 的对等方之一，但该对等方尚未安装，我们不会告诉您您需要 B 的哪些对等方。”

The automatic installation of peer dependencies was explicitly removed with npm 3.

npm 3 明确删除了对等依赖项的自动安装。

So you cannot install peer dependencies automatically with npm 3 and upwards.

因此，您无法使用 npm 3 及更高版本自动安装对等依赖项。

Updated Solution:

更新的解决方案：

Use following for each peer dependency to install that and remove the error

对每个对等依赖项使用以下内容进行安装并删除错误

npm install --save-dev xxxxx

Deprecated Solution:

弃用的解决方案：

You can use npm-install-peersto find and install required peer dependencies.
npm install -g npm-install-peers
npm-install-peers
If you are getting this error after updating any package's version then remove node_modulesdirectory and reinstall packages by npm installor npm cache cleanand npm install.

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-peers
npm-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目录并通过npm install或npm cache clean和重新安装软件包npm install。

Answer 2

回答by Marc-André Lafortune

For each error of the form:

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.

You should:

你应该：

$ npm install --save-dev "{other thing}"

Note: The quotes are needed if the {other thing}has spaces, like in this example:

注意：如果{other thing}有空格，则需要引号，如本例所示：

npm WARN [email protected] requires a peer of rollup@>=0.66.0 <2 but none was installed.

Resolved with:

解决了：

$ npm install --save-dev "rollup@>=0.66.0 <2"

Answer 3

回答by Clearhat

The accepted answer of using npm-install-peers did not work, nor removing node_modules and rebuilding. The answer to run

使用 npm-install-peers 的公认答案不起作用，也不删除 node_modules 和重建。运行的答案

npm install --save-dev @xxxxx/xxxxx@latest

for each one, with the xxxxx referring to the exact text in the peer warning, worked. I only had four warnings, if I had a dozen or more as in the question, it might be a good idea to script the commands.

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，如果我在问题中有十几个或更多，那么编写命令脚本可能是个好主意。

Answer 4

回答by Lead Developer

I had a similar issue and solved after running these instructions!

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

Answer 5

回答by Gabriel Bleu

You need to only depend on one major version of angular, so update all modules depending on angular 2.x :

您只需要依赖一个主要版本的 angular，因此根据 angular 2.x 更新所有模块：

update @angular/flex-layout to ^2.0.0-beta.9
update @angular/material to ^2.0.0-beta.12
update angularfire2 to ^4.0.0-rc.2
update zone.js to ^0.8.18
update webpack to ^3.8.1
add @angular/[email protected] (required for @angular/material)
replace angular2-google-maps by @agm/[email protected] (new name)

将@angular/flex-layout 更新为 ^2.0.0-beta.9
将@angular/material 更新为 ^2.0.0-beta.12
将 angularfire2 更新为 ^4.0.0-rc.2
将 zone.js 更新为 ^0.8.18
更新 webpack 到 ^3.8.1
添加@angular/[email protected]（@angular/material 需要）
将 angular2-google-maps 替换为 @agm/[email protected]（新名称）

Answer 6

回答by Elijah Lynn

total edge case here: I had this issue installing an Arch AUR PKGBUILD file manually. In my case I needed to delete the 'pkg', 'src' and 'node_modules' folders, then it built fine without this npm error.

这里的总边缘情况：我在手动安装 Arch AUR PKGBUILD 文件时遇到了这个问题。在我的情况下，我需要删除“pkg”、“src”和“node_modules”文件夹，然后它就可以正常构建而没有出现此 npm 错误。

Answer 7

回答by Hukmaram

npm install -g npm-install-peers

it will add all the missing peers and remove all the error

它将添加所有丢失的对等点并删除所有错误

Answer 8

回答by Luckza

Had the same issue installing angular material CDK:

安装角材料 CDK 时遇到了同样的问题：

npm install --save @angular/material @angular/cdk @angular/animations

Adding -devlike below worked for me:

添加-dev如下对我有用：

npm install --save-dev @angular/material @angular/cdk @angular/animations

Javascript npm WARN ... 需要 ... 的同级，但没有安装。您必须自己安装对等依赖项

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Javascript npm WARN ... 需要 ... 的同级，但没有安装。您必须自己安装对等依赖项

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回答by Ridham Tarpara

回答by Marc-André Lafortune

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回答by Gabriel Bleu

回答by Elijah Lynn

回答by Hukmaram

回答by Luckza

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