🐛 [analytics, remote_config, etc] Missing null safety implementations

[shinayser]

Hey guys, there is any ETA on when we getting null safety versions for those projects?
After I migrated my entire project to null safety and tried running it, I got some erros related to null safety. Here is the log:

../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_analytics-7.1.0/lib/firebase_analytics.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_analytics-7.1.0/lib/observer.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/firebase_remote_config.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_analytics_platform_interface-1.1.0/lib/firebase_analytics_platform_interface.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/firebase_remote_config_platform_interface.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_analytics_platform_interface-1.1.0/lib/method_channel_firebase_analytics.dart:5:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_settings.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9
^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/utils/exception.dart:1:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.9

[deimantasa]

Seems that remote config is not ready for null-safety.

As a temp. solution, one can try go to each warning file and delete // @dart=2.x - however, after this issue is solved, after next build round - tons of other issues appear.

../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:46:58: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  static RemoteConfig instanceFor({@required FirebaseApp app}) {
                                                         ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:37:24: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  RemoteConfig._({this.app})
                       ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:38:39: Error: Field '_instance' should be initialized because its type 'FirebaseRemoteConfigPlatform' doesn't allow null.
 - 'FirebaseRemoteConfigPlatform' is from 'package:firebase_remote_config_platform_interface/src/platform_interface/platform_interface_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart').
  static FirebaseRemoteConfigPlatform _instance;
                                      ^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:73:57: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  FirebaseRemoteConfigPlatform delegateFor({FirebaseApp app}) {
                                                        ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:84:30: Error: The parameter 'remoteConfigValues' can't have a value of 'null' because of its type 'Map<dynamic, dynamic>', but the implicit default value is 'null'.
 - 'Map' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      {Map<dynamic, dynamic> remoteConfigValues}) {
                             ^^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:28:38: Error: The parameter 'appInstance' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  FirebaseRemoteConfigPlatform({this.appInstance}) : super(token: _token);
                                     ^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:61:20: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
      {FirebaseApp app, Map<dynamic, dynamic> pluginConstants}) {
                   ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart:61:47: Error: The parameter 'pluginConstants' can't have a value of 'null' because of its type 'Map<dynamic, dynamic>', but the implicit default value is 'null'.
 - 'Map' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      {FirebaseApp app, Map<dynamic, dynamic> pluginConstants}) {
                                              ^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_settings.dart:9:20: Error: The parameter 'fetchTimeout' can't have a value of 'null' because of its type 'Duration', but the implicit default value is 'null'.
 - 'Duration' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
    @required this.fetchTimeout,
                   ^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_settings.dart:10:20: Error: The parameter 'minimumFetchInterval' can't have a value of 'null' because of its type 'Duration', but the implicit default value is 'null'.
 - 'Duration' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
    @required this.minimumFetchInterval,
                   ^^^^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:53:57: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  FirebaseRemoteConfigPlatform delegateFor({FirebaseApp app}) {
                                                        ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:65:30: Error: The parameter 'remoteConfigValues' can't have a value of 'null' because of its type 'Map<dynamic, dynamic>', but the implicit default value is 'null'.
 - 'Map' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
      {Map<dynamic, dynamic> remoteConfigValues}) {
                             ^^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:40:60: Error: The parameter 'app' can't have a value of 'null' because of its type 'FirebaseApp', but the implicit default value is 'null'.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
Try adding either an explicit non-'null' default value or the 'required' modifier.
  MethodChannelFirebaseRemoteConfig({@required FirebaseApp app})
                                                           ^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/utils/exception.dart:7:66: Error: The parameter 'stackTrace' can't have a value of 'null' because of its type 'StackTrace', but the implicit default value is 'null'.
 - 'StackTrace' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
Exception convertPlatformException(Object exception, [StackTrace stackTrace]) {
                                                                 ^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/utils/exception.dart:25:17: Error: The parameter 'stackTrace' can't have a value of 'null' because of its type 'StackTrace', but the implicit default value is 'null'.
 - 'StackTrace' is from 'dart:core'.
Try adding either an explicit non-'null' default value or the 'required' modifier.
    [StackTrace stackTrace]) {
                ^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:27:5: Warning: Operand of null-aware operation '??=' has type 'FirebaseRemoteConfigPlatform' which excludes null.
 - 'FirebaseRemoteConfigPlatform' is from 'package:firebase_remote_config_platform_interface/src/platform_interface/platform_interface_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart').
    _delegatePackingProperty ??= FirebaseRemoteConfigPlatform.instanceFor(
    ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:50:44: Error: A value of type 'RemoteConfig?' can't be returned from a function with return type 'RemoteConfig' because 'RemoteConfig?' is nullable and 'RemoteConfig' isn't.
 - 'RemoteConfig' is from 'package:firebase_remote_config/firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/firebase_remote_config.dart').
      return _firebaseRemoteConfigInstances[app.name];
                                           ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:37:62: Error: The value 'null' can't be assigned to the parameter type 'FirebaseApp' because 'FirebaseApp' is not nullable.
 - 'FirebaseApp' is from 'package:firebase_core/firebase_core.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_core-1.0.0/lib/firebase_core.dart').
  MethodChannelFirebaseRemoteConfig._() : super(appInstance: null);
                                                             ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:55:57: Error: A value of type 'MethodChannelFirebaseRemoteConfig?' can't be returned from a function with return type 'FirebaseRemoteConfigPlatform' because 'MethodChannelFirebaseRemoteConfig?' is nullable and 'FirebaseRemoteConfigPlatform' isn't.
 - 'MethodChannelFirebaseRemoteConfig' is from 'package:firebase_remote_config_platform_interface/src/method_channel/method_channel_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart').
 - 'FirebaseRemoteConfigPlatform' is from 'package:firebase_remote_config_platform_interface/src/platform_interface/platform_interface_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart').
      return _methodChannelFirebaseRemoteConfigInstances[app.name];
                                                        ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:60:55: Error: A value of type 'MethodChannelFirebaseRemoteConfig?' can't be returned from a function with return type 'FirebaseRemoteConfigPlatform' because 'MethodChannelFirebaseRemoteConfig?' is nullable and 'FirebaseRemoteConfigPlatform' isn't.
 - 'MethodChannelFirebaseRemoteConfig' is from 'package:firebase_remote_config_platform_interface/src/method_channel/method_channel_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart').
 - 'FirebaseRemoteConfigPlatform' is from 'package:firebase_remote_config_platform_interface/src/platform_interface/platform_interface_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart').
    return _methodChannelFirebaseRemoteConfigInstances[app.name];
                                                      ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:121:28: Error: A value of type 'bool?' can't be assigned to a variable of type 'bool' because 'bool?' is nullable and 'bool' isn't.
      bool configChanged = await channel
                           ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:149:28: Error: A value of type 'bool?' can't be assigned to a variable of type 'bool' because 'bool?' is nullable and 'bool' isn't.
      bool configChanged = await channel.invokeMethod<bool>(
                           ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:173:35: Error: Method 'asBool' cannot be called on 'RemoteConfigValue?' because it is potentially null.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
Try calling using ?. instead.
    return _activeParameters[key].asBool();
                                  ^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:181:35: Error: Method 'asInt' cannot be called on 'RemoteConfigValue?' because it is potentially null.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
Try calling using ?. instead.
    return _activeParameters[key].asInt();
                                  ^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:189:35: Error: Method 'asDouble' cannot be called on 'RemoteConfigValue?' because it is potentially null.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
Try calling using ?. instead.
    return _activeParameters[key].asDouble();
                                  ^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:197:35: Error: Method 'asString' cannot be called on 'RemoteConfigValue?' because it is potentially null.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
Try calling using ?. instead.
    return _activeParameters[key].asString();
                                  ^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:203:32: Error: The value 'null' can't be assigned to the parameter type 'List<int>' because 'List<int>' is not nullable.
 - 'List' is from 'dart:core'.
      return RemoteConfigValue(null, ValueSource.valueStatic);
                               ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:205:29: Error: A value of type 'RemoteConfigValue?' can't be returned from a function with return type 'RemoteConfigValue' because 'RemoteConfigValue?' is nullable and 'RemoteConfigValue' isn't.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
    return _activeParameters[key];
                            ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:239:40: Error: A value of type 'Map<dynamic, dynamic>?' can't be assigned to a variable of type 'Map<dynamic, dynamic>' because 'Map<dynamic, dynamic>?' is nullable and 'Map<dynamic, dynamic>' isn't.
 - 'Map' is from 'dart:core'.
    Map<dynamic, dynamic> parameters = await channel
                                       ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:248:40: Error: A value of type 'Map<dynamic, dynamic>?' can't be assigned to a variable of type 'Map<dynamic, dynamic>' because 'Map<dynamic, dynamic>?' is nullable and 'Map<dynamic, dynamic>' isn't.
 - 'Map' is from 'dart:core'.
    Map<dynamic, dynamic> properties = await channel
                                       ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/utils/exception.dart:27:7: Error: A value of type 'Map<String, dynamic>?' can't be assigned to a variable of type 'Map<String, String>'.
 - 'Map' is from 'dart:core'.
      ? Map<String, dynamic>.from(platformException.details)
      ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/utils/exception.dart:31:38: Error: A value of type 'String?' can't be assigned to a variable of type 'String' because 'String?' is nullable and 'String' isn't.
  String message = platformException.message;
                                     ^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config-0.9.0-dev.0/lib/src/remote_config.dart:20:32: Error: Field '_delegatePackingProperty' should be initialized because its type 'FirebaseRemoteConfigPlatform' doesn't allow null.
 - 'FirebaseRemoteConfigPlatform' is from 'package:firebase_remote_config_platform_interface/src/platform_interface/platform_interface_firebase_remote_config.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/platform_interface/platform_interface_firebase_remote_config.dart').
  FirebaseRemoteConfigPlatform _delegatePackingProperty;
                               ^^^^^^^^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:43:34: Error: Field '_activeParameters' should be initialized because its type 'Map<String, RemoteConfigValue>' doesn't allow null.
 - 'Map' is from 'dart:core'.
 - 'RemoteConfigValue' is from 'package:firebase_remote_config_platform_interface/src/remote_config_value.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_value.dart').
  Map<String, RemoteConfigValue> _activeParameters;
                                 ^^^^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:44:24: Error: Field '_settings' should be initialized because its type 'RemoteConfigSettings' doesn't allow null.
 - 'RemoteConfigSettings' is from 'package:firebase_remote_config_platform_interface/src/remote_config_settings.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_settings.dart').
  RemoteConfigSettings _settings;
                       ^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:45:12: Error: Field '_lastFetchTime' should be initialized because its type 'DateTime' doesn't allow null.
 - 'DateTime' is from 'dart:core'.
  DateTime _lastFetchTime;
           ^^^^^^^^^^^^^^
../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/method_channel/method_channel_firebase_remote_config.dart:46:27: Error: Field '_lastFetchStatus' should be initialized because its type 'RemoteConfigFetchStatus' doesn't allow null.
 - 'RemoteConfigFetchStatus' is from 'package:firebase_remote_config_platform_interface/src/remote_config_status.dart' ('../../.pub-cache/hosted/pub.dartlang.org/firebase_remote_config_platform_interface-0.2.0-dev.0/lib/src/remote_config_status.dart').
  RemoteConfigFetchStatus _lastFetchStatus;
                          ^^^^^^^^^^^^^^^^

Is there any ETA of Remote Config and null-safety compatibility?

[Salakar]

For now if you're using the non-null safe packages you'll need to use the flag to opt-out of sound null safety.

flutter run --no-sound-null-safety

See https://firebase.flutter.dev/docs/null-safety for the packages that are currently null safe.

[shinayser]

Thanks for your answer @Salakar . You folks have any ETA on when those other packages will receve a full sound safety verison?

[markusaksli-nc]

Since this isn't mentioned on #4182 I'm assuming we can leave this open.

[pxsanghyo]

Also DynamicLinks.

It's not even listed as non-null-safe FlutterFire packages. https://firebase.flutter.dev/docs/null-safety/