UMModuleRegistryAdapter.h not found when running React Native app in iOS simulator

For latest RN versions (RN 0.60+) errors like this should be fixed with the auto-linking and just running a pod install.

For older versions you should try:

react-native link in the root folder of your project

Then in Xcode Product->Clean Build folder, restart JS server and attempt to rebuild.

If still not working double check the configs from here:

https://github.com/unimodules/react-native-unimodules

and the App.delegate from here: https://gist.github.com/brentvatne/1ece8c32a3c5c9d0ac3a470460c65603

Sources:

Pod install reminder was first suggested by Sandy in the below comment

pod install didn't work for me until I added these lines to my pod file:

require_relative '../node_modules/react-native-unimodules/cocoapods.rb'

And

use_unimodules!(modules_paths: ['../node_modules'])

Then do a pod install.

Example: https://gist.github.com/sjchmiela/6c079f2173938a9a61a7c6f053c45000