E / AndroidRuntime：致命异常：主PID：4435

Question

使用模拟器当我尝试启动相机时我遇到了错误：我试图重建，重启和不同的模拟器但不工作如何修复它？提前致谢

09-03 18:43:58.349 4435-4435/com.google.android.gms.samples.vision.face.facetracker E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.google.android.gms.samples.vision.face.facetracker, PID: 4435
    java.lang.RuntimeException: Could not find requested camera.
        at com.google.android.gms.vision.CameraSource.zzchq(Unknown Source)
        at com.google.android.gms.vision.CameraSource.start(Unknown Source)
        at com.google.android.gms.samples.vision.face.facetracker.ui.camera.CameraSourcePreview.startIfReady(CameraSourcePreview.java:86)
        at com.google.android.gms.samples.vision.face.facetracker.ui.camera.CameraSourcePreview.access$100(CameraSourcePreview.java:31)
        at com.google.android.gms.samples.vision.face.facetracker.ui.camera.CameraSourcePreview$SurfaceCallback.surfaceCreated(CameraSourcePreview.java:109)
        at android.view.SurfaceView.updateWindow(SurfaceView.java:618)
        at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:161)
        at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:944)
        at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2205)
        at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1254)
        at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6337)
        at android.view.Choreographer$CallbackRecord.run(Choreographer.java:874)
        at android.view.Choreographer.doCallbacks(Choreographer.java:686)
        at android.view.Choreographer.doFrame(Choreographer.java:621)
        at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:860)
        at android.os.Handler.handleCallback(Handler.java:751)
        at android.os.Handler.dispatchMessage(Handler.java:95)
        at android.os.Looper.loop(Looper.java:154)
        at android.app.ActivityThread.main(ActivityThread.java:6119)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:886)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:776)

Answer 1

你不能在模拟器上运行一个应用程序，它需要物理资源像相机，传感器一样运行。要测试此类应用程序，您需要一个具有工作资源的真实设备。

仿真器只是一个具有Android OS真实图像的虚拟设备