Module AppRegistry is not registered callable module (calling runApplication)

Question

I am using native base for making app in react-native. I am new to both things. When I run the app It gives me this error:

Here is my code:

Answer 1

I have solved it, just closing the current Metro Bundler and restarting by type comment below.

npm start -- --reset-cache

Answer 2

I am using Expo

In my case, I resolved the issue by adding the following code in app.json file

"expo":{
  ...
  "android": {
    "package": "com.mycompanyname.myappname
  }
}

Answer 3

you just need to close the metro server by control + c and then restart by npm start

Note: If that too doesn't work then just restart your computer, it'll definitely work then.

Answer 4

You should have this at the bottom of the index.ios.js file AppRegistry.registerComponent('Point', () => Point); and also import AppRegistry from react-native