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

The error you get indicates that you have two react-native dependencies. One in your main project, one in your xxx module, thus creating a conflict between their package.jsons. seems like if you install a package from a local path, it copies its node_modules directory.

As you already have react-native as peer dependency in your custom module's package.json, try removing E:\cdg-native\CDG\node_modules\react-native-XXX\node_modules, this should solve the conflict.