How to Solve "Could not find module '@angular-devkit/build-angular" Error in Angular?

The error message "Could not find module '@angular-devkit/build-angular'" typically occurs when you are trying to build or run an Angular application using the Angular CLI, but the required @angular-devkit/build-angular package is missing or not installed properly.

To fix this error, you can try the following steps:

Make sure that you have installed the @angular-devkit/build-angular package as a devDependency in your project by running the following command in your project root directory:

css
npm install --save-dev @angular-devkit/build-angular

If the package is already installed, try deleting the node_modules folder and reinstalling all packages again by running the following command:

bash
rm -rf node_modules && npm install

If the above steps do not work, try updating your Angular CLI to the latest version by running the following command:

java
npm install -g @angular/cli@latest

If you are still having issues, try deleting the package-lock.json file in your project root directory and run npm install again to rebuild your dependencies:

java
rm package-lock.json
npm install

If none of the above steps work, you may need to check your angular.json configuration file to make sure that the @angular-devkit/build-angular package is listed as a builder for your project's build configurations.

In general, this error occurs when the @angular-devkit/build-angular package is missing or not installed properly, so following the above steps should resolve the issue.

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