input npm start to start an reactjs project and it get stuck with computer can't open a website automatically

Question

I want create a Reactjs project,I user command as follow:

npx create-react-app my-app
cd my-app
npm start

I have set the C:\Windows\System32\WindowsPowerShell\v1.0 as the environment variable.

However, the command npm start get stuck ，the Command Line Tool have show Starting the development server... for 1 hour ! And the computer can't open a website automatically！

what should I do to solve this problem?

Answer 1

the solution is

1. reboot your computer
2. allow the IDE(eg VSCode) to control your computer's behaviors.

and it worked.

it associate with a permission problem