Useful or not, from you.
react-native-firebase Error: [messaging/unknown] The operation couldn’t be completed. (com.firebase.iid error 1001.) NativeFirebaseError: [messaging/unknown] The operation couldn’t be completed. (com.firebase.iid error 1001.)

Error: [messaging/unknown] The operation couldn’t be completed. (com.firebase.iid error 1001.) NativeFirebaseError: [messaging/unknown] The operation couldn’t be completed. (com.firebase.iid error 1001.) when to try get token with RNF V6.0.3 on IOS anyone can help ?

That's a useful answer
Without any help

An issue already exist for this problem. Take a look at #2657