Network Response Time Out Error (create-react-native-app) (expo)

Question

I am trying to run create-react-native-app on expo app in android.

Firstly ,I created the project by writing command

create-react-native-app t

Answer 1

I suggest you install expo application for react native, link to official guide here

npm install -g exp

Then you can use Genymotion software to emulate different environment setting for your app an run:

exp start

If you use in the terminal "npm start" with native react, the following is for you. I found out that if my application runs successfully IpV addresses of my computer, that are shown in the terminal and that is on Expo app are identical, for example:

ipconfig -> IPv4 Address. . . . . . . . . . . : 10.0.0.124
exp://10.0.0.124:19000

Based on this observation I solved this issue by the following way:

1. Close npm prompt script which is running app
2. Close Expo app

3. Find your IP by running command in the terminal:

   ipconfig
   

4. Run command in NodeJS command prompt with your IP (for example 10.0.0.124)

   set REACT_NATIVE_PACKAGER_HOSTNAME=10.0.0.124
   

5. Start Expo app, scan barcode

   npm start
   

   If it does not help, then use next steps recommended by React developers in addition to other reasonable efforts:

6. Install Genymotion with VirtualBox
7. SignUp at Genymotion site
8. Run Genymotion software and !!!SignIn