Red Error Screen when build first project in React

Question

Today I start to learn about React. After install React by some command in Terminal, I use react-native MyFirstProject to create my first project, and in my Android Studio emulator get a red error screen like this:

Error Screen

I tried to resolve follow there command but still have no idea what I am doing? Can someone explain for me how to fix it? Thank you.

Answer 1

To fix open a new terminal,go to your project folder and run

npm install

after installation complete

npm start

What “npm start” does is start your react package manager, read more about it in details here

https://github.com/rnpm/rnpm

Also run the command, This is quite a useful tool during development.

adb reverse tcp:8081 tcp:8081

And last Reload.

For android one can use CTRL + R For apple one can use R + R (two times R).

Answer 2

Looks you didn't install babel, babel module is not existion the the node_module.

npm install babel then npm start If it doesn't work. You can try npm start --reset-cache

Hope it help.