Cannot find module '@angular-devkit/core'

Cannot find module '@angular-devkit/core' - after clean install

Firstly I open Node.js command prompt and creating the project directory for my project creation.
My project name is – ServiceDemo

My Project Directory is - D:\Angular>

Execute the serve commands - D:\Angular> ng new ServiceDemo

After successfully created my project – ServiceDemo and I tried to execute the command - "ng serve --open" and got error: ‘Cannot find module '@angular-devkit/core’

Stayed Informed – Angular 5 and Angular 4 Documents

D:\Angular\ServiceDemo>ng serve --open

module.js:540

throw err;

Error: Cannot find module '@angular-devkit/core'

at Function.Module._resolveFilename (module.js:538:15)

at Function.Module._load (module.js:468:25)

at Module.require (module.js:587:17)

at require (internal/module.js:11:18)

at Object.<anonymous> (D:\Angular\ServiceDemo\node_modules\@angular-devkit\schematics\src\tree\virtual.js:10:16)

at Module._compile (module.js:643:30)

at Object.Module._extensions..js (module.js:654:10)

at Module.load (module.js:556:32)

at tryModuleLoad (module.js:499:12)

See the below steps -

Your environment has been set up for using Node.js 8.9.4 (x64) and npm.

C:\Users\Viaindia>d:

D:\>cd Angular

D:\Angular>ng new ServiceDemo

create ServiceDemo/e2e/app.e2e-spec.ts (294 bytes)

create ServiceDemo/e2e/app.po.ts (208 bytes)

create ServiceDemo/e2e/tsconfig.e2e.json (235 bytes)

create ServiceDemo/karma.conf.js (923 bytes)

create ServiceDemo/package.json (1324 bytes)

create ServiceDemo/protractor.conf.js (722 bytes)

create ServiceDemo/README.md (1027 bytes)

create ServiceDemo/tsconfig.json (363 bytes)

create ServiceDemo/tslint.json (3040 bytes)

create ServiceDemo/.angular-cli.json (1247 bytes)

create ServiceDemo/.editorconfig (245 bytes)

create ServiceDemo/.gitignore (516 bytes)

create ServiceDemo/src/assets/.gitkeep (0 bytes)

create ServiceDemo/src/environments/environment.prod.ts (51 bytes)

create ServiceDemo/src/environments/environment.ts (387 bytes)

create ServiceDemo/src/favicon.ico (5430 bytes)

create ServiceDemo/src/index.html (298 bytes)

create ServiceDemo/src/main.ts (370 bytes)

create ServiceDemo/src/polyfills.ts (2405 bytes)

create ServiceDemo/src/styles.css (80 bytes)

create ServiceDemo/src/test.ts (1085 bytes)

create ServiceDemo/src/tsconfig.app.json (211 bytes)

create ServiceDemo/src/tsconfig.spec.json (304 bytes)

create ServiceDemo/src/typings.d.ts (104 bytes)

create ServiceDemo/src/app/app.module.ts (316 bytes)

create ServiceDemo/src/app/app.component.html (1141 bytes)

create ServiceDemo/src/app/app.component.spec.ts (986 bytes)

create ServiceDemo/src/app/app.component.ts (207 bytes)

create ServiceDemo/src/app/app.component.css (0 bytes)

Installing packages for tooling via npm.

> node-sass@4.7.2 install D:\Angular\ServiceDemo\node_modules\node-sass

> node scripts/install.js

Cached binary found at C:\Users\Viaindia\AppData\Roaming\npm-cache\node-sass\4.7.2\win32-x64-57_binding.node

> uglifyjs-webpack-plugin@0.4.6 postinstall D:\Angular\ServiceDemo\node_modules\webpack\node_modules\uglifyjs-webpack-plugin

> node lib/post_install.js

> node-sass@4.7.2 postinstall D:\Angular\ServiceDemo\node_modules\node-sass

> node scripts/build.js

Binary found at D:\Angular\ServiceDemo\node_modules\node-sass\vendor\win32-x64-57\binding.node

Testing binary

Binary is fine

npm WARN @angular-devkit/schematics@0.0.51 requires a peer of @angular-devkit/core@0.0.28 but none is installed. You must install peer dependencies yourself.

npm WARN @schematics/angular@0.1.16 requires a peer of @angular-devkit/core@0.0.28 but none is installed. You must install peer dependencies yourself.

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

added 1060 packages in 54.192s

Installed packages for tooling via npm.

Project 'ServiceDemo' successfully created.

D:\Angular>cd ServiceDemo

D:\Angular\ServiceDemo>ng serve --open

module.js:540

throw err;

Error: Cannot find module '@angular-devkit/core'

at Function.Module._resolveFilename (module.js:538:15)

at Function.Module._load (module.js:468:25)

at Module.require (module.js:587:17)

at require (internal/module.js:11:18)

at Object.<anonymous> (D:\Angular\ServiceDemo\node_modules\@angular-devkit\schematics\src\tree\virtual.js:10:16)

at Module._compile (module.js:643:30)

at Object.Module._extensions..js (module.js:654:10)

at Module.load (module.js:556:32)

at tryModuleLoad (module.js:499:12)

Solution – To resolve the above issue, follow below steps

I struggled with the same problem just a minute ago and I resolve after updating the Angular CLI. The Update command is -

npm update -g @angular/cli

The Example looks like -

Your environment has been set up for using Node.js 8.9.4 (x64) and npm.

C:\Users\Viaindia>npm update -g @angular/cli

C:\Users\Viaindia\AppData\Roaming\npm\ng -> C:\Users\Viaindia\AppData\Roaming\npm\node_modules\@angular\cli\bin\ng

npm WARN optional SKIPPING OPTIONAL DEPENDENCY: fsevents@1.1.3 (node_modules\@angular\cli\node_modules\fsevents):

npm WARN notsup SKIPPING OPTIONAL DEPENDENCY: Unsupported platform for fsevents@1.1.3: wanted {"os":"darwin","arch":"any"} (current: {"os":"win32","arch":"x64"})

+ @angular/cli@1.6.5

added 319 packages, removed 57 packages, updated 46 packages and moved 5 packages in 90.571s

C:\Users\Viaindia>

After that I created a new project (DemoProj1) and execute the serve commond, Its Compiled successfully.

The Example looks like -

D:\Angular\DemoProj1>ng serve --open

** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200/ **

11% building modules 12/13 modules 1 active ...\DemoProj1\src\app\app.component.htmlwebpack: wait until bundle finished: / Date: 2018-01-23T03:47:37.734Z

Hash: 363a68fe026da6ecd219

Time: 7080ms

chunk {inline} inline.bundle.js (inline) 5.79 kB [entry] [rendered]

chunk {main} main.bundle.js (main) 19.4 kB [initial] [rendered]

chunk {polyfills} polyfills.bundle.js (polyfills) 550 kB [initial] [rendered]

chunk {styles} styles.bundle.js (styles) 33.6 kB [initial] [rendered]

chunk {vendor} vendor.bundle.js (vendor) 7.41 MB [initial] [rendered]

webpack: Compiled successfully.

at Function.Module._load (module.js:491:3)

You can see in the video demo in detail –

I hope you are enjoying with this post! Please share with you friends. Thank you!!

Angular 2, 4, 5, 6, 7, 8 and 9 Interview Questions and Answers -Books

» Are you preparing for Angular Interview? Buy this book (Including Angular 8, 7, 6, 5,4, 2) Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A Interview Q/A » A Complete Guide Book of Angular 9 This is a concise, complete overview of the key aspects of Angular 9. It is fully up to date with the latest release of Angular. This article provide all the important aspects required for angular developers looking for brief and useful content... Posted In Angular 9 » A Complete Guide Book of Angular 8 This is a concise, complete overview of the key aspects of Angular 9. It is fully up to date with the latest release of Angular. This article provide all the important aspects required for angular developers looking for brief and useful content... Posted In Angular 8 » A Complete Guide Book of Angular 7 This is a concise, complete overview of the key aspects of Angular 7. It is fully up to date with the latest release of Angular. This

39 Best Object Oriented JavaScript Interview Questions and Answers

Most Popular 37 Key Questions for JavaScript Interviews. What is Object in JavaScript? What is the Prototype object in JavaScript and how it is used? What is "this"? What is its value? Explain why "self" is needed instead of "this". What is a Closure and why are they so useful to us? Explain how to write class methods vs. instance methods. Can you explain the difference between == and ===? Can you explain the difference between call and apply? Explain why Asynchronous code is important in JavaScript? Can you please tell me a story about JavaScript performance problems? Tell me your JavaScript Naming Convention? How do you define a class and its constructor? What is Hoisted in JavaScript? What is function overloadin

25 Best Vue.js 2 Interview Questions and Answers

What Is Vue.js? The Vue.js is a progressive JavaScript framework and used to building the interactive user interfaces and also it’s focused on the view layer only (front end). The Vue.js is easy to integrate with other libraries and others existing projects. Vue.js is very popular for Single Page Applications developments. The Vue.js is lighter, smaller in size and so faster. It also supports the MVVM ( Model-View-ViewModel ) pattern. The Vue.js is supporting to multiple Components and libraries like - ü Tables and data grids ü Notifications ü Loader ü Calendar ü Display time, date and age ü Progress Bar ü Tooltip ü Overlay ü Icons ü Menu ü Charts ü Map ü Pdf viewer ü And so on The Vue.js was developed by “ Evan You ”, an Ex Google software engineer. The latest version is Vue.js 2. The Vue.js 2 is very similar to Angular because Evan You was inspired by Angular and the Vue.js 2 components looks like -

nullinjectorerror no provider for httpclient angular 17

In Angular 17 where the standalone true option is set by default, the app.config.ts file is generated in src/app/ and provideHttpClient(). We can be added to the list of providers in app.config.ts Step 1: To provide HttpClient in a standalone app we could do this in the app.config.ts file, app.config.ts: import { ApplicationConfig } from '@angular/core'; import { provideRouter } from '@angular/router'; import { routes } from './app.routes'; import { provideClientHydration } from '@angular/platform-browser'; //This (provideHttpClient) will help us to resolve the issue import {provideHttpClient} from '@angular/common/http'; export const appConfig: ApplicationConfig = { providers: [ provideRouter(routes), provideClientHydration(), provideHttpClient () ] }; The appConfig const is used in the main.ts file, see the code, main.ts : import { bootstrapApplication } from '@angular/platform-browser'; import { appConfig } from '

AngularJs input date format calendar

Table of Context bout the input date. Click for live demo on plnker 1. Allow to use of a custom date format like "yyyy/MM/dd" or "yyyy-MM-dd" etc. 2. Allow to check the input date typed by the user is correct or not. 1 2 3 4 //The model must be a Date object, otherwise Angular will throw an error. //The error is Invalid Date objects will be rendered as an empty string. i.e. The dates whose getTime() is NaN. //The model must be a Date object, otherwise Angular will throw an error. //The error is Invalid Date objects will be rendered as an empty string. i.e. The dates whose getTime() is NaN. The Example 1 code as given below. 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 <!doctype html> <html lang= "en" > <head> <meta charset= "utf-8" /> <script src= " http://ajax.googleapis.com/ajax/lib

Anil Singh | Code-sample.com

Search This Blog