adding nil check for some static methods to avoud unwated behaviors (#1279) This is a similar fix following up https://github.com/flutter/plugins/pull/1274

diff --git a/packages/firebase_core/CHANGELOG.md b/packages/firebase_core/CHANGELOG.md
index 60386f7..99ea4b6 100644
--- a/packages/firebase_core/CHANGELOG.md
+++ b/packages/firebase_core/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.3.1+1
+
+* Add nil check on static functions to prevent crashes or unwanted behaviors.
+
 ## 0.3.1
 
 * Remove an assertion that can interfere with hot-restart.

diff --git a/packages/firebase_core/ios/Classes/FirebaseCorePlugin.m b/packages/firebase_core/ios/Classes/FirebaseCorePlugin.m
index 2c5418e..7a22585 100644
--- a/packages/firebase_core/ios/Classes/FirebaseCorePlugin.m
+++ b/packages/firebase_core/ios/Classes/FirebaseCorePlugin.m

@@ -7,6 +7,9 @@
 #import <Firebase/Firebase.h>
 
 static NSDictionary *getDictionaryFromFIROptions(FIROptions *options) {
+  if (!options) {
+    return nil;
+  }
   return @{
     @"googleAppID" : options.googleAppID ?: [NSNull null],
     @"bundleID" : options.bundleID ?: [NSNull null],
@@ -23,6 +26,9 @@
 }
 
 static NSDictionary *getDictionaryFromFIRApp(FIRApp *app) {
+  if (!app) {
+    return nil;
+  }
   return @{@"name" : app.name, @"options" : getDictionaryFromFIROptions(app.options)};
 }
 

diff --git a/packages/firebase_core/pubspec.yaml b/packages/firebase_core/pubspec.yaml
index 818ecf5..2f215ff 100644
--- a/packages/firebase_core/pubspec.yaml
+++ b/packages/firebase_core/pubspec.yaml

@@ -3,7 +3,7 @@
   Firebase apps.
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/firebase_core
-version: 0.3.1
+version: 0.3.1+1
 
 flutter:
   plugin:

diff --git a/packages/firebase_database/CHANGELOG.md b/packages/firebase_database/CHANGELOG.md
index 50178e9..7f8995c 100644
--- a/packages/firebase_database/CHANGELOG.md
+++ b/packages/firebase_database/CHANGELOG.md

@@ -1,3 +1,7 @@
+## 2.0.2
+
+* Fix the issue that `getDictionaryFromError` always returns non nil result even when the parameter is nil.
+
 ## 2.0.1+3
 
 * Fixing DatabaseReference.set unhandled exception which happened when a successful operation was performed.

diff --git a/packages/firebase_database/ios/Classes/FirebaseDatabasePlugin.m b/packages/firebase_database/ios/Classes/FirebaseDatabasePlugin.m
index e9b09cb..7140946 100644
--- a/packages/firebase_database/ios/Classes/FirebaseDatabasePlugin.m
+++ b/packages/firebase_database/ios/Classes/FirebaseDatabasePlugin.m

@@ -15,6 +15,9 @@
 }
 
 static NSDictionary *getDictionaryFromError(NSError *error) {
+  if (!error) {
+    return nil;
+  }
   return @{
     @"code" : @(error.code),
     @"message" : error.domain ?: [NSNull null],

diff --git a/packages/firebase_database/pubspec.yaml b/packages/firebase_database/pubspec.yaml
index f5189b7..d0f6698 100755
--- a/packages/firebase_database/pubspec.yaml
+++ b/packages/firebase_database/pubspec.yaml

@@ -3,7 +3,7 @@
   with realtime data syncing across Android and iOS clients, and offline access.
 author: Flutter Team <flutter-dev@googlegroups.com>
 homepage: https://github.com/flutter/plugins/tree/master/packages/firebase_database
-version: 2.0.1+3
+version: 2.0.2
 
 flutter:
   plugin: