diff --git a/README.md b/README.md
index ae99304..001996b 100644
--- a/README.md
+++ b/README.md
@@ -1,10 +1,14 @@
+# 公告
+我们没有预料到大家对我们Teamtalk反响如此热烈，还没正式对外开放就有这么多人关注，目前github上的代码是早期版本，还存在一些问题，最新的代码还没来得及提交，开发人员正在努力中，非常感谢大家对Teamtalk开源的关注和支持~
+
+
 # mogujie Open Source IM App  ![Logo](https://avatars2.githubusercontent.com/u/8542441?v=2&s=200)
 
 [mogujie](http://www.mogujie.com) Open Source IM is aiming to provide another IM solution in your company for colleagues to communicate with each other. 
 
 we've released Win/Mac/Android/iOS  client repositories in github as well as IM server repository.
 
-see all projects in our [mogutt](https://github.com/mogutt) github account page or visit our [ website](http://tt.mogu.io/)(Chinease) for more information
+see all projects in our [mogutt](https://github.com/mogutt) github account page or visit our [ website](http://tt.mogu.io/)(In Chinese) for more information
 
 ## Android Client Features
 * list all colleagues in your company as well as detail profiles like (email addr, title, phone No. etc.)
@@ -36,17 +40,17 @@ Build steps:
 ## Manual
 use below identities to login:
 * **id:** eric
-* **password:** 12345
+* **password:** 123456
 
 * **id:** tom
-* **password:** 12345
+* **password:** 123456
 
 
 ![loginpage] (http://s6.sinaimg.cn/mw690/003j8GoBgy6MMp9gLNra5&690)
 
 ![contactpage](http://s9.sinaimg.cn/mw690/003j8GoBgy6MMp9dHmM38&690)
 
-or you can go to our oficial [website](http://tt.mogu.io/home/sign)(Chinease) to register an account
+or you can go to our official [website](http://tt.mogu.io/home/sign)(In Chinese) to register an account
 
 
 ## Acknowledgements
diff --git a/mgandroid-teamtalk/project.properties b/mgandroid-teamtalk/project.properties
index 80bfdd8..79a3e21 100644
--- a/mgandroid-teamtalk/project.properties
+++ b/mgandroid-teamtalk/project.properties
@@ -11,6 +11,6 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-16
+target=android-19
 android.library.reference.1=../mgimlibs
 android.library=false
diff --git a/mgandroid-teamtalk/res/values/tt_strings_activity_login.xml b/mgandroid-teamtalk/res/values/tt_strings_activity_login.xml
index 76f29d7..1242128 100755
--- a/mgandroid-teamtalk/res/values/tt_strings_activity_login.xml
+++ b/mgandroid-teamtalk/res/values/tt_strings_activity_login.xml
@@ -13,6 +13,7 @@
     <string name="error_invalid_password">亲，密码太短了</string>
     <string name="error_incorrect_user">请检查用户名密码是否正确</string>
     <string name="error_field_required">请输入用户名</string>
+    <string name="error_password_required">请输入密码</string>
     <string name="invalid_account">登录失败,请重试</string>
     <string name="invalid_network">请检查网络是否正常！</string>
      <string name="login_timeout">登陆超时,请重试</string>
diff --git a/mgandroid-teamtalk/src/com/mogujie/tt/ui/activity/LoginActivity.java b/mgandroid-teamtalk/src/com/mogujie/tt/ui/activity/LoginActivity.java
index 0e94c95..5cf306f 100755
--- a/mgandroid-teamtalk/src/com/mogujie/tt/ui/activity/LoginActivity.java
+++ b/mgandroid-teamtalk/src/com/mogujie/tt/ui/activity/LoginActivity.java
@@ -322,7 +322,7 @@ public void attemptLogin() {
 		if (TextUtils.isEmpty(mPassword)) {
 
 			// mPasswordView.setError(getString(R.string.error_field_required));
-			Toast.makeText(this, getString(R.string.error_field_required),
+			Toast.makeText(this, getString(R.string.error_password_required),
 					Toast.LENGTH_SHORT).show();
 
 			focusView = mPasswordView;
diff --git a/mgimlibs/project.properties b/mgimlibs/project.properties
index dfa4dd0..91d2b02 100644
--- a/mgimlibs/project.properties
+++ b/mgimlibs/project.properties
@@ -11,5 +11,5 @@
 #proguard.config=${sdk.dir}/tools/proguard/proguard-android.txt:proguard-project.txt
 
 # Project target.
-target=android-16
+target=android-19
 android.library=true