Okta - React-native - Custom Login Example Error

I followed the react-native custom example samples-js-react-native/custom-sign-in at master · okta/samples-js-react-native · GitHub. Set up my environmental variables as below:-

CLIENT_ID=0oa1095cz1xzfghressa
REDIRECT_URI=com.okta.dev-71921545:/callback
LOGOUT_REDIRECT_URI=com.okta.dev-71921545:/callback
ISSUER=https://dev-71921545.okta.com/oauth2/default

The app throwing me, “Error: Your Okta URL is missing” error.

May be I’m doing something wrong. Please, help.

Did you add those values to this file?

Never mind. I figured it out.