npm WARN ... requires a peer of ... but none is installed. You must install peer dependencies yourself
JavascriptAngularTypescriptNpmJavascript Problem Overview
I tried to run a project downloaded from github. Unfortunately, during npm install
the 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:
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.
So, installing some packages causes the list of dependencies to grow substantially.
Does anyone have a solution?
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.
Here are the contents of 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 serve
returns(I pasted only the beginning and the end):
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.
Javascript Solutions
Solution 1 - Javascript
> "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."
The automatic installation of peer dependencies was explicitly removed with npm 3.
So you cannot install peer dependencies automatically with npm 3 and upwards.
Updated Solution:
Use following for each peer dependency to install that and remove the error
npm install --save-dev xxxxx
Deprecated Solution:
- You can use npm-install-peers to 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_modules
directory and reinstall packages bynpm install
ornpm cache clean
andnpm install
.
Solution 2 - Javascript
For each error of the form:
npm WARN {something} requires a peer of {other thing} but none is installed. You must install peer dependencies yourself.
You should:
$ npm install --save-dev "{other thing}"
Note: The quotes are needed if the {other thing}
has spaces, like in this example:
npm WARN rollup-plugin-uglify@6.0.3 requires a peer of rollup@>=0.66.0 <2 but none was installed.
Resolved with:
$ npm install --save-dev "rollup@>=0.66.0 <2"
Solution 3 - Javascript
The accepted answer of using npm-install-peers did not work, nor removing node_modules and rebuilding. The answer to run
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.
Solution 4 - Javascript
npm install -g npm-install-peers
it will add all the missing peers and remove all the error
Solution 5 - Javascript
I had a similar issue and solved after running these instructions!
npm install npm -g
npm install --save-dev @angular/cli@latest
npm install
npm start
Solution 6 - Javascript
i had the same problem with react-firebase-file-uploader.
npm i {something} --legacy-peer-deps /worked fine for me
Solution 7 - Javascript
since npm7 was released you can now install automatically the Peer Dependencies. they make an algorithm to Ensure that a validly matching peer dependency is found at or above the peer-dependant's location in the node_modules tree.if that's the case then they add the peer dependencies correctly. you just need to install npm 7
npm i -g npm@7
find more a link
Solution 8 - Javascript
In my case following commands worked for me:
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
After that if you are facing "Cannot find module 'bcrypt' then for that you can resolve this one with below commands:
npm install node-gyp -g
npm install bcrypt -g
npm install bcrypt --save
Hope it will work for you as well.
Solution 9 - Javascript
Same problem with AWS CDK, but for me it helped to rm -rf node_modules
before npm install
.
Also make sure that all aws-cdk components are in the same version.
Solution 10 - Javascript
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.
Solution 11 - Javascript
I don't know if someone tried this new package:
npm install -g install-peerdeps
This is the alternative of npm install -g npm-install-peers
Link of the source: https://www.npmjs.com/package/install-peerdeps
Solution 12 - Javascript
Try installing multer using the following command. It worked for me.
npm i --save-dev @types/multer
Solution 13 - Javascript
I would suggest to use this tool called depcheck. According with the author definition:
> Depcheck is a tool for analyzing the dependencies in a project to see: > how each dependency is used, which dependencies are useless, and which > dependencies are missing from package.json
Solution 14 - Javascript
You need to only depend on one major version of angular, so update all modules depending on angular 2.x :
- 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)
Solution 15 - Javascript
Had the same issue installing angular material CDK:
npm install --save @angular/material @angular/cdk @angular/animations
Adding -dev
like below worked for me:
npm install --save-dev @angular/material @angular/cdk @angular/animations
Solution 16 - Javascript
npm i -D @angular/material @angular/cdk @angular/animations
Solution 17 - Javascript
npm i [package-name] --force
use --force.