An unhandled exception occurred: cannot find builder “@angular-devkit/build-angular:tslint”.

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An unhandled exception occurred: cannot find builder “@angular-devkit/build-angular:tslint”.

This error usually occurs when the required builder is missing in the Angular project configuration. The builder mentioned in the error message, “@angular-devkit/build-angular:tslint”, is responsible for running the TSLint linter in an Angular project.

To resolve this issue, you can try the following steps:

  1. First, make sure you have the necessary dependencies installed by running the following command in the terminal:
    2.     npm install --save-dev @angular-devkit/build-angular

    This will install the required builder package in your project.

  2. If the above step doesn’t solve the problem, you can try updating your Angular CLI version. To update the CLI, run the following command:
    3.     npm install -g @angular/cli

    This will update the Angular CLI to the latest version. After updating, try running the project again to see if the issue is resolved.

  3. If neither of the above steps resolve the issue, there might be a chance that your project configuration files have been corrupted. In this case, you can try removing the “node_modules” directory and the “package-lock.json” file, and then reinstalling the dependencies by running “npm install” command.

By following these steps, you should be able to fix the “cannot find builder” error and run your Angular project smoothly.

Example:

    <div>
      <p>An unhandled exception occurred: cannot find builder "@angular-devkit/build-angular:tslint".</p>
      
      <ol>
        <li>First, make sure you have the necessary dependencies installed by running the following command in the terminal:</li>
        
        <pre>
        npm install --save-dev @angular-devkit/build-angular
        </pre>
        
        <li>If the above step doesn't solve the problem, you can try updating your Angular CLI version. To update the CLI, run the following command:</li>
        
        <pre>
        npm install -g @angular/cli
        </pre>
        
        <li>If neither of the above steps resolve the issue, there might be a chance that your project configuration files have been corrupted. In this case, you can try removing the "node_modules" directory and the "package-lock.json" file, and then reinstalling the dependencies by running "npm install" command.</li>
      </ol>

      <p>By following these steps, you should be able to fix the "cannot find builder" error and run your Angular project smoothly.</p>
    </div>

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