However, if you’re using a corrupted or a buggy version of Angular CLI, these libraries are not installed. When you create a new project using Angular CLI, these third-party libraries should be installed automatically.

These libraries are stored in the node_modules folder inside your project folder. Our Angular applications use a bunch of 3rd-party libraries. When you run ng serve, you may receive the following error: node_modules appears empty, you may need to run `npm install`. This tells NPM that you want to install this package globally so you can run it from any folders on your machine. Once you have installed Node 6.9+, you need to install Angular CLI globally: npm install -g the -g flag here. If you’re running an earlier version of Node, head over to and download the installer for the latest stable version. Open up the Terminal on macOS/Linux or Command Prompt on Windows and run the following command to find out the version of Node you are running: node -version

A lot of errors can be resolved by simply upgrading your Node to the latest stable version. To solve this error, first, make sure you’re running Node 6.9 or higher. This error is simply telling you that Angular CLI is either not installed or not added to the PATH. When creating a new project with Angular CLI, you may receive the following error: 'ng' is not recognized as an internal or external command. If there is an error you encounter often, please let us know by dropping a comment. This post is a work in progress and I’m planning to add more errors. For each error, I’m going to explain what it means and how to solve it. In this post, I’m going to list the most common errors you may encounter while getting started with Angular. September 7th, 2017 Comments Common Angular Errors

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