Flutter Cloud Firestore fails on calling getDocuments() on iOS - dart

Question

I have an issue with fetching some data from Cloud Firestore in my flutter project. Code is as follows:
void test () async {
var data = await Firestore.instance.collection("markers").getDocuments();
print("${data.documents.length}");
}
However, on the console I get the following:
[VERBOSE-2:shell.cc(178)] Dart Error: Unhandled exception:
NoSuchMethodError: The method '[]' was called on null.
Receiver: null
Tried calling: []("documents")
#0 Object.noSuchMethod (dart:core/runtime/lib/object_patch.dart:50:5)
#1 new QuerySnapshot._ (file:///Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.9.6/lib/src/query_snapshot.dart:10:57)
#2 Query.getDocuments (file:///Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/cloud_firestore-0.9.6/lib/src/query.dart:100:26)
<asynchronous suspension>
#3 HomePage.test (package:KaffeeBar/screens/home/home_page.dart:39:63)
<asynchronous suspension>
#4 HomePage.build (package:KaffeeBar/screens/home/home_page.dart:45:5)
#5 StatelessElement.build (package:flutter/src/widgets/framework.dart:3788:28)
#6 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3735:15)
#7 Element.rebuild (package:flutter/src/widgets/fra<…>
It just struck me as a bit of a strange error. A screenshot of my firestore structure can be seen here: https://imgur.com/a/SeYYlGY
And yes there is data inside the Document, so it shouldnt be returning Null because of no data.
Any help appreciated!
EDIT: Furthermore, all throughout my app the Firestore seems to have stopped working. In some areas its still functions fine, however in some ottthers it returns null values
EDIT2: Seems I tried to compile the app on Android and it flat out doesnt compile due to the Firebase Plugins.
Note: /Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.3.1+1/android/src/main/java/io/flutter/plugins/firebase/core/FirebaseCorePlugin.java uses unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
Note: /Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_messaging-4.0.0+1/android/src/main/java/io/flutter/plugins/firebasemessaging/FlutterFirebaseInstanceIDService.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
/Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_performance-0.1.0+4/android/src/main/java/io/flutter/plugins/firebaseperformance/FirebasePerformancePlugin.java:71: error: cannot access zzf
trace.start();
^
class file for com.google.android.gms.internal.firebase-perf.zzf not found
Note: /Users/jacobpyke/Development/flutter/v1/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_performance-0.1.0+4/android/src/main/java/io/flutter/plugins/firebaseperformance/FirebasePerformancePlugin.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
EDIT 3: After Getting the App to compile, it works perfectly fine on android. So perhaps something wrong with the firebase GoogleInfo-Service.plst

Answer 1

Turns out this issue was a part of a bug within the Cloud Firestore plugin for Flutter. As such, This issue has been resolved as of update 0.9.7. In order to fix the issue, update the cloud firestore plugin in your pubspec.yaml file to cloud_firestore: ^0.9.7 and run flutter packages get Source can be found here