java.lang.NoClassDefFoundError:android.support.v4.content.LocalBroadcastManager facebook android app

Question

我知道这个问题已被提出,我已经尝试过使用其他许多帖子来帮助我完成这个但是没有一个有效.我正在通过此链接安装Facebook登录到Android应用程序:https://developers.facebook.com/docs/android/getting-started.我已经导入了Facebook SDK,它适用于示例应用程序,所以我知道没关系.我的libs文件夹中没有任何JAR.在属性> Android库中,我添加了appcompat_v7和FacebookSDK.在Built Path> Order and Export中,我检查了Android Dependencies和Android Private Libraries.

错误

java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager

发生在这行代码上:

Session.openActiveSession(this, true, new Session.StatusCallback() {

有关为什么会发生这种情况的任何想法？我一整天都在弄乱我的房产而且无法让它运转起来.代码就在FB开发者网站上,所以我确定它很好.谢谢.

07-23 16:19:18.506: W/dalvikvm(22318): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
07-23 16:19:18.506: W/dalvikvm(22318): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
07-23 16:19:18.506: W/dalvikvm(22318): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
07-23 16:19:18.506: W/dalvikvm(22318): VFY: unable to find class referenced in signature (Landroid/support/v4/app/Fragment;)
07-23 16:19:18.506: I/dalvikvm(22318): Could not find method android.support.v4.content.LocalBroadcastManager.getInstance, referenced from method com.facebook.Session.postActiveSessionAction
07-23 16:19:18.506: W/dalvikvm(22318): VFY: unable to resolve static method 222: Landroid/support/v4/content/LocalBroadcastManager;.getInstance (Landroid/content/Context;)Landroid/support/v4/content/LocalBroadcastManager;
07-23 16:19:18.506: D/dalvikvm(22318): VFY: replacing opcode 0x71 at 0x0009
07-23 16:19:18.545: D/AndroidRuntime(22318): Shutting down VM
07-23 16:19:18.545: W/dalvikvm(22318): threadid=1: thread exiting with uncaught exception (group=0x419707c0)
07-23 16:19:18.545: E/AndroidRuntime(22318): FATAL EXCEPTION: main
07-23 16:19:18.545: E/AndroidRuntime(22318): java.lang.NoClassDefFoundError: android.support.v4.content.LocalBroadcastManager
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.facebook.Session.postActiveSessionAction(Session.java:1567)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.facebook.Session.setActiveSession(Session.java:974)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.facebook.Session.openActiveSession(Session.java:1129)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.facebook.Session.openActiveSession(Session.java:1014)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.example.testfb3.MainActivity.onCreate(MainActivity.java:18)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.Activity.performCreate(Activity.java:5133)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2293)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2389)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.ActivityThread.access$600(ActivityThread.java:153)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1269)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.os.Handler.dispatchMessage(Handler.java:99)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.os.Looper.loop(Looper.java:137)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at android.app.ActivityThread.main(ActivityThread.java:5289)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at java.lang.reflect.Method.invokeNative(Native Method)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at java.lang.reflect.Method.invoke(Method.java:525)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:739)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at     com.android.internal.os.ZygoteInit.main(ZygoteInit.java:555)
07-23 16:19:18.545: E/AndroidRuntime(22318):    at dalvik.system.NativeStart.main(Native Method)

完整活动:

public class MainActivity extends Activity {

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);

// start Facebook Login
Session.openActiveSession(this, true, new Session.StatusCallback() {

  // callback when session changes state
  @Override
  public void call(Session session, SessionState state, Exception exception) {
    if (session.isOpened()) {

      // make request to the /me API
      Request.newMeRequest(session, new Request.GraphUserCallback() {

        // callback after Graph API response with user object
        @Override
        public void onCompleted(GraphUser user, Response response) {
          if (user != null) {
            TextView welcome = (TextView) findViewById(R.id.welcome);
            welcome.setText("Hello " + user.getName() + "!");
          }
        }
      }).executeAsync();
    }
  }
});
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
  super.onActivityResult(requestCode, resultCode, data);
  Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}

}

编辑

只是为了让你们看看我的设置是什么样的:

Answer 1

根据我的经验,此错误发生在构建设置中.

我建议如下做.

点击"添加罐子......"按钮

从中选择"android-support-v4.jar"

选择"订购和导出"选项卡,然后选中"android-support-v4.jar".

清理项目并构建.

运行项目后,应用程序将执行.

祝好运

--Andrey Alexander--