Expo dev Tool not launching at browser .

HI, I tried to run my expo app but every time it will start metro bundler at the terminal.

Developer tools running on http://localhost:19002
Starting Metro Bundler
Your native app is running at exp://192.168.1.12:19000
Logs for your project will appear below. Press Ctrl+C to exit.

it never starts dev tools in the browser. but if copy-paste the localhost URL to the browser then it will open but if I click runs on the android emulator in a browser it will return an error message Error opening simulator. Check metro logs for details. dev Tool never launched automatically in the browser.