我正在尝试向抽象活动添加片段。这是一个基本活动，我的应用程序中的所有其他活动都从此扩展。
我的问题：将片段添加到基本活动中时，出现以下错误。
Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f09011d (com.musicplayer.musicana:id/nowPlayingScreensContainer) for fragment SlidingUpPanelFragment{961e486 #0 id=0x7f09011d}
我很确定我在添加片段时正在使用基本活动中存在的framelayout的ID。
baseActivity的XML：
<com.sothree.slidinguppanel.SlidingUpPanelLayout
xmlns:sothree="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/sliding_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom"
sothree:umanoPanelHeight="70dp"
sothree:umanoShadowHeight="10dp"
android:background="#000"
sothree:umanoFadeColor="#b2000000"
>
<FrameLayout
android:id="@+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
/>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/nowPlayingScreensContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</com.sothree.slidinguppanel.SlidingUpPanelLayout>
其中有两个框架布局，第一个用于添加活动，第二个用于添加片段。
添加片段的代码（用onCreate编写）：
SlidingUpPanelFragment fragment = SlidingUpPanelFragment.newInstance();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.nowPlayingScreensContainer, fragment);
fragmentTransaction.commit();
完整日志：
Failed to capture application
06-21 14:54:22.002 2601-2601/com.musicplayer.musicana E/FragmentManager: No view found for id 0x7f09011d (com.musicplayer.musicana:id/nowPlayingScreensContainer) for fragment SlidingUpPanelFragment{961e486 #0 id=0x7f09011d}
Activity state:
06-21 14:54:22.014 2601-2601/com.musicplayer.musicana E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.musicplayer.musicana, PID: 2601
java.lang.RuntimeException: Unable to start activity ComponentInfo{com.musicplayer.musicana/com.musicplayer.musicana.splash}: java.lang.IllegalArgumentException: No view found for id 0x7f09011d (com.musicplayer.musicana:id/nowPlayingScreensContainer) for fragment SlidingUpPanelFragment{961e486 #0 id=0x7f09011d}
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2699)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2766)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1507)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6236)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)
Caused by: java.lang.IllegalArgumentException: No view found for id 0x7f09011d (com.musicplayer.musicana:id/nowPlayingScreensContainer) for fragment SlidingUpPanelFragment{961e486 #0 id=0x7f09011d}
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1422)
at android.support.v4.app.FragmentManagerImpl.moveFragmentToExpectedState(FragmentManager.java:1759)
at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1827)
at android.support.v4.app.BackStackRecord.executeOps(BackStackRecord.java:797)
at android.support.v4.app.FragmentManagerImpl.executeOps(FragmentManager.java:2596)
at android.support.v4.app.FragmentManagerImpl.executeOpsTogether(FragmentManager.java:2383)
at android.support.v4.app.FragmentManagerImpl.removeRedundantOperationsAndExecute(FragmentManager.java:2338)
at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:2245)
at android.support.v4.app.FragmentManagerImpl.dispatchStateChange(FragmentManager.java:3248)
at android.support.v4.app.FragmentManagerImpl.dispatchActivityCreated(FragmentManager.java:3200)
at android.support.v4.app.FragmentController.dispatchActivityCreated(FragmentController.java:195)
at android.support.v4.app.FragmentActivity.onStart(FragmentActivity.java:597)
at android.support.v7.app.AppCompatActivity.onStart(AppCompatActivity.java:177)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1249)
at android.app.Activity.performStart(Activity.java:6701)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2662)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2766)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1507)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6236)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:891)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:781)
基本活动的OnCreate：
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.base_activity);
slidingUpPanelLayout = findViewById(R.id.sliding_layout);
slidingUpPanelLayout.addPanelSlideListener(this);
storageUtil = new StorageUtil(getApplicationContext());
pref = getSharedPreferences(TAG,MODE_PRIVATE);
registerSelectScreenReceiver();
SlidingUpPanelFragment fragment = SlidingUpPanelFragment.newInstance();
FragmentManager fragmentManager = getSupportFragmentManager();
FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
fragmentTransaction.add(R.id.nowPlayingScreensContainer, fragment);
fragmentTransaction.commit();
}
很乐意提供更多代码。该如何解决？