unknown command create react app with code examples 2

Creating React applications has become increasingly important in the web development community. React is a JavaScript library that is used to build user interfaces. React applications are highly efficient because of their component-based architecture and one-way data flow. To make things easier for developers, the React team has developed a tool called "create-react-app" which provides an easy way to create a new React project. However, sometimes even experienced developers encounter an error message saying "unknown command create-react-app". In this article, we will discuss what this error message means and what could be causing it.

What is create-react-app?

Create-react-app is a tool developed by the React team to create a new React project quickly. It provides an abstraction layer over the various configuration settings required to run a React application and frees developers from worrying about configuration details. It automatically creates a folder structure for a React application with the necessary files such as index.html, index.js, package.json, and others. Create-react-app also installs all the necessary packages and dependencies required to run the application.

The Error: Unknown Command 'Create-react-app'

When you encounter this error message, it means that your computer is not recognizing the "create-react-app" command. This error message occurs because the create-react-app package is not installed globally in your computer. This happens when you try to use "create-react-app" command after installing the React package but forgetting to install create-react-app package.

Fixing the Error

Fixing this error is easy – all you have to do is install the create-react-app package globally on your computer. You can do this by running the following command in your terminal or command prompt:

npm install -g create-react-app

This command installs create-react-app globally on your computer which will allow you to create a new React project using the "create-react-app" command.

Code Examples

Let us see an example of setting up a new React project using create-react-app:

  1. Open up your terminal or command prompt.

  2. Type the following command and hit enter to create a new React project:

create-react-app my-react-project
  1. Wait for a few minutes to allow create-react-app to complete the project setup.

  2. Once the setup is complete, navigate into the newly created project folder using the following command:

cd my-react-project
  1. Finally, start the development server by running the following command:
npm start


In conclusion, create-react-app is a tool that simplifies the process of creating a new React project. When encountering the "unknown command create-react-app" error message, it means that the create-react-app package is not installed globally on your computer. To fix this, install the package using the "npm install -g create-react-app" command. We hope that this article has been helpful in resolving the issue.

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Popular questions

Certainly! Here are 5 questions related to the topic of "unknown command create react app" along with their answers:

  1. What is create-react-app?
    Answer: Create-react-app is a command-line tool developed by the React team that automates the process of setting up a new React project. It provides a pre-configured environment with all the necessary dependencies and tools installed, allowing developers to focus on building their application.

  2. Why am I getting the error message "unknown command create-react-app"?
    Answer: This error message occurs when the "create-react-app" command is not recognized by your computer. This is usually because the create-react-app package is not installed globally on your system.

  3. How can I fix the "unknown command create-react-app" error?
    Answer: To fix this error, you need to install the create-react-app package globally on your computer. You can do this by running the following command: "npm install -g create-react-app".

  4. What is the purpose of the "npm start" command?
    Answer: The "npm start" command is used to start the local development server for your React application. This command compiles your code and opens a local server, allowing you to view your application in a web browser.

  5. How can I check if create-react-app is installed on my computer?
    Answer: To check if create-react-app is installed globally on your computer, you can run the following command: "create-react-app –version". If create-react-app is installed, this command will display the version number of the tool. If create-react-app is not installed, you will receive an error message.



As an experienced software engineer, I have a strong background in the financial services industry. Throughout my career, I have honed my skills in a variety of areas, including public speaking, HTML, JavaScript, leadership, and React.js. My passion for software engineering stems from a desire to create innovative solutions that make a positive impact on the world. I hold a Bachelor of Technology in IT from Sri Ramakrishna Engineering College, which has provided me with a solid foundation in software engineering principles and practices. I am constantly seeking to expand my knowledge and stay up-to-date with the latest technologies in the field. In addition to my technical skills, I am a skilled public speaker and have a talent for presenting complex ideas in a clear and engaging manner. I believe that effective communication is essential to successful software engineering, and I strive to maintain open lines of communication with my team and clients.
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