Require cycles are allowed, but can result in uninitialized values. Consider refactoring to remove the need for a cycle. ERROR Invariant Violation: Native module cannot be null. ERROR Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication) ERROR Invariant Violation: Module AppRegistry is not a registered callable module (calling runApplication)

First, the problem is you haven’t install pod.

cd ios
pod install

or update libraries of pod

cd ios
pod repo update

or because a new pod version is rolled out.

cd ios
sudo gem install cocoapods
pod repo update

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