Error: jest-haste-map: Haste module naming collision:

Question

I have created a custom npm module (will use xxx instead of its name) and link it manually using npm install.

I tried very har

Answer 1

It looks like you have a 2 different react-native project folders where one is dependent over another (it's getting included as node_module dependency) and it seems you are running your server start ("react-native start") command from the library folder.