Create-react-app error

Question

I would like to use create-react-app, so I follow the instruction:

npm install -g create-react-app
create-react-app my-app
cd my-app/
npm start

But I have error on last step. After running npm start I get error:

Could not find an open port at linux-llw5. Network error message: getaddrinfo ENOTFOUND linux-llw5

How can I fix it?

Answer 1

Your machine probably has a global HOST environment variable so Create React App tries to find an open port on it instead of the default localhost . Delete the environment variable and it should work fine as you want.

Alternatively you can explicitly change start in scripts in package.json to run HOST=localhost react-scripts start . But this seems a bit complex.

Answer 2

If you set variable in command line and run

...
cd my-app/
HOST=localhost npm start

application should start correctly