Firestore is failed to build with Flutter for iOS

Question

I want to add Firestore to Flutter app, and I have problems running it on iOS. I already added this line to pubspec.yaml

cloud_firestore: ^0.6.3

Flutter is updated. Flutter doctor says that I have v0.3.1.

While compiling app for iOS simulator I got this build error

 Xcode's output: ↳     /
Users/*********/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.2.3/ios/Classes/FirebaseCorePlugin.m:7:9:
fatal error: 'Firebase/Firebase.h' file not found
    #import <Firebase/Firebase.h>
        ^~~~~~~~~~~~~~~~~~~~~


 1 error generated

I also run pod update to make sure that it is not issue with cocoapods.

UPDATE

After another research I found that deleting #use_frameworks! from Podfile in iOS folder let's project to compile. But what should be done in case when this can't be deleted?

Answer 1

The update to this gives me enough information to diagnose (hopefully). Flutter wasn't very good at supporting #use_frameworks & swift, but that was fixed fairly recently (mid-april 2018). However, it may not have made it to the beta channel yet at time of writing.

What was going on when #use_frameworks was set previously is that it wasn't linking everything into the right libraries, and a cocoapods bug was stopping it from finding certain files. The newest version of everything uses dynamic linking but has static_framework=true in the podfile for dependencies with static dependencies so that everything they need actually get linked into the right place.

This is fixed & tested on the master branch/channel, but should probably have made it to the dev branch/channel by now.

Here's the steps to makes sure your environment will support the fix, from this other github issue:

• make sure you have Cocoapods 1.5.0 installed (pod --version should say >= 1.5.0)
• change any dependencies you have on the firebase_xxx, google_sign_in, or cloud_firestore plugins to the newest versions (look for changelog entries referring to Cocoapods 1.5.0)
• change your ios/Podfile to the newest version on Flutter master branch (https://github.com/flutter/flutter/tree/master/packages/flutter_tools/templates/cocoapods)
• delete ios/Podfile.lock and ios/Pods
• switch to Flutter master (or dev) branch using flutter channel <branch>
• flutter clean ; flutter run