FirebaseCore/FIRApp.h' file not found

Upgrading to version 10.0.0 (from a quite an older version), iOS build failed with the following error:

xxxxxx/node_modules/react-native-fcm/ios/RNFIRMessaging.m:1:
xxxxxx/node_modules/react-native-fcm/ios/RNFIRMessaging.h:4:9: fatal error: 'FirebaseCore/FIRApp.h' file not found
#import <FirebaseCore/FIRApp.h>
        ^
1 error generated.

This affects debug builds only.

I believe the that the cause is framework/header search paths in RNFIRMessaging.xcodeproj/project.pbxproj:

				FRAMEWORK_SEARCH_PATHS = (
					"$(inherited)",
					"$(PROJECT_DIR)/../../../ios/Pods/**",
					"$(SRCROOT)/../../../node_modules/react-native-firestack/ios/**",
				);
				GCC_PREPROCESSOR_DEFINITIONS = "$(inherited)";
				HEADER_SEARCH_PATHS = (
					"$(SRCROOT)/../../react-native/React/**",
					"$(PROJECT_DIR)/../../../ios/Pods/**",
					"$(SRCROOT)/../../../node_modules/react-native-firestack/ios/**",

while in Release scheme it is set to this:

				FRAMEWORK_SEARCH_PATHS = (
					"$(inherited)",
					"$(PROJECT_DIR)/../../../ios/**",
					"$(SRCROOT)/../../../node_modules/react-native-firestack/ios/**",
				);
				HEADER_SEARCH_PATHS = (
					"$(SRCROOT)/../../react-native/React/**",
					"$(SRCROOT)/../../../ios/**",
					"$(SRCROOT)/../../../node_modules/react-native-firestack/ios/**",
				);

This configuration assumes usage of Cocoapods.

Changing "$(PROJECT_DIR)/../../../ios/Pods/**" to the more universal "$(PROJECT_DIR)/../../../ios/**" as in the Release scheme fixes this issue

[evollu]

@sibelius Move all your Firebase SDK into /ios/Pods folder. it is not working for you?

[ArminSpahic]

At the end I just used apns for the project push notification