diff --git a/android/build.gradle b/android/build.gradle
index f2873bec..4fd819a2 100644
--- a/android/build.gradle
+++ b/android/build.gradle
@@ -22,7 +22,7 @@ rootProject.allprojects {
         google()
         jcenter()
         flatDir {
-            dirs 'libs'
+            dirs project(':ttlock_flutter').file('libs')
         }
     }
 }
@@ -30,6 +30,10 @@ rootProject.allprojects {
 apply plugin: 'com.android.library'
 
 android {
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.ttlock.ttlock_flutter'
+    }
+
     compileSdkVersion 31
 
     defaultConfig {
diff --git a/example/android/app/build.gradle b/example/android/app/build.gradle
index 5f0fd1dd..c542a415 100644
--- a/example/android/app/build.gradle
+++ b/example/android/app/build.gradle
@@ -25,6 +25,10 @@ apply plugin: 'com.android.application'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
+    if (project.android.hasProperty("namespace")) {
+        namespace 'com.ttlock.ttlock_flutter_example'
+    }
+
     compileSdkVersion 31
 
     lintOptions {
@@ -55,11 +59,6 @@ android {
         }
     }
 }
-repositories {
-    flatDir {
-        dirs 'libs', '..\\..\\..\\android\\libs'
-    }
-}
 
 flutter {
     source '../..'
diff --git a/lib/ttlock.dart b/lib/ttlock.dart
index 5093d8b4..a1746853 100644
--- a/lib/ttlock.dart
+++ b/lib/ttlock.dart
@@ -1,6 +1,6 @@
 import 'package:flutter/services.dart';
 import 'package:ttlock_flutter/ttdoorSensor.dart';
-import 'package:ttlock_flutter/ttremoteKey.dart';
+import 'package:ttlock_flutter/ttremotekey.dart';
 import 'package:ttlock_flutter/ttremoteKeypad.dart';
 import 'dart:convert' as convert;
 import 'ttgateway.dart';