Missing Camera View On Cloud Recognition Sample

I'm having this missing camera view problem when running the sample cloud recognition on a connected android device. These are the steps that I followed:

1. Create new unity project.

2. Import 'cloudrecognition-2-6-7.unitypackage'

3. Open 'Vuforia-4-CloudRecognition.unity' scene.

4. Click File->Build Settings then I add the current scenes in build.

5. Then I clicked build and run, I select the path of my android sdk when a prompt appeared.

Then the app run on my device, the unity splash screen appeared followed by a black screen with white line on the lower left.

The Viewport Rect is already set on x=0, y=0, width=1, height=1. I'm completely lost in here please help me.

*I've attached the screenshot of what I see on my screen.

*I'm using unity 4 ver 4.5.3f3