Troubleshooting the 'Cannot Find Module @angular/core' Error: A Comprehensive Guide

The 'Cannot Find Module @angular/core' error is a common issue faced by developers while working with Angular. This error occurs when the Angular core module is missing or not properly installed in your project. This comprehensive guide will help you understand the reasons behind this error and provide step-by-step solutions to fix it.

Table of Contents

Understanding the 'Cannot Find Module @angular/core' Error

The 'Cannot Find Module @angular/core' error occurs when the Angular CLI cannot locate the core module of Angular. This module is essential for running Angular applications, as it contains the main building blocks like components, directives, and services.

There are several reasons why this error might occur, including:

  • Missing or incorrect installation of the @angular/core package
  • Outdated Angular CLI version
  • Corrupted node_modules folder
  • Incorrect TypeScript configuration

Step-by-Step Solutions

1. Verify Installation

Before trying any other solutions, ensure that you have correctly installed the @angular/core package. Open the package.json file in your project and look for the @angular/core dependency. It should be listed under the dependencies section. If it's missing, you can add it manually as shown below:

"dependencies": {
  "@angular/core": "^12.0.0",

2. Reinstall @angular/core

If the @angular/core dependency is present in the package.json file, try reinstalling the package using the following command:

npm install @angular/core

After reinstalling, run your application to see if the error is resolved.

3. Update Angular CLI

An outdated Angular CLI version might cause the 'Cannot Find Module @angular/core' error. To check your Angular CLI version, run the following command:

ng version

If your Angular CLI is outdated, update it using the following command:

ng update @angular/cli

4. Delete node_modules and package-lock.json

If the error persists, try deleting the node_modules folder and package-lock.json file from your project directory. These files can sometimes become corrupted, causing issues with package installations.

After deleting the node_modules folder and package-lock.json file, run the following command to reinstall all dependencies:

npm install

5. Check TypeScript Configuration

Ensure that your TypeScript configuration (tsconfig.json) includes the correct path for the @angular/core module. The configuration should include the following settings:

  "compilerOptions": {
    "moduleResolution": "node",


Q: What is the role of the @angular/core module in Angular?

The @angular/core module contains essential building blocks like components, directives, and services required for building Angular applications.

Q: How do I check the version of the @angular/core package installed in my project?

You can find the version of the @angular/core package in the package.json file under the dependencies section.

To update the @angular/core package, use the following command:

ng update @angular/core

Q: Can I have multiple versions of Angular CLI installed globally on my computer?

No, you can have only one global version of Angular CLI installed on your computer. If you need different versions for different projects, consider using project-specific installations.

Q: How can I share my Angular project with others without causing the 'Cannot Find Module @angular/core' error?

To share your Angular project with others without causing any errors, make sure to include the package.json file in the shared project. This file contains all the required dependencies, and the recipient can run npm install to install them.

Learn more about Angular | Angular CLI documentation | TypeScript configuration options

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