Recently I have started to use React Native and I didn't want to use Android Studio, so I manually installed every thing including hyper-v but after that I have a really strange problem if I put any port in .env file when I run npm start it saying that the port is in use!

And the other issue was when I was using JetBrains' products (like WebStorm) it won't start. I found this in log files :

java.net.BindException: Address already in use: bind

And the most strange thing was that the ports were not in use !

So after a week I found the solution .

CodePudding user response：

The answer is really simple this is a problem with hyper-v and wsl2, and I don't know why it cause this problem.

I solved my problem using two commands (I'm using Windows 10) :

net stop winnat

net start winnat

I hope this fix your problem!