Finally I could see my objects. Thanks alot!

Take a look at this thread on the Unity forums: http://answers.unity3d.com/questions/51972/the-scene-is-empty.html

Make sure the Default layer is checked!

- Kim

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Here is image from the documentation from the PDF, Im hopeing to see this kind of view like it used to be.

Camera icon, Sun icon, Object which is not only mesh.

Thanks.

I really appreciate your help. I already followed the list you suggest but it doenst solve my problem yet.

Here is another screenshot.
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I found that when I click the name "teapot" in the Hierarchy, it shows the mesh object. Its only mesh though.

However it doesnt show the icon of "sun", when I click the "Directional light". It used to show icons, sun icon for Directional light, camera icon for ARcamera, but now it shows only arrows like my first screen shot.

are there any way to initialize the preference?

I can't see everything in that screenshot, but let's check a few things:

1) Did you use the QCAR > Rename 1.0.x Data Set property to rename your config.xml and qcar-resources.dat files?

2) Did you check the appropriate data set to load and activate on the ARCamera DataSetLoadBehaviour component?

3) Did you select the appropriate data set and target name in the Inspector of the ImageTargetStones object?

4) Did you add an object as a child of the Image Target?

Note that you can focus on the Image Target in the scene by clicking on ImageTargetStones in the Hierarchy and pressing the "F" key with your mouse hovered over the Scene view.

Make sure you are following the 1.5 documentation: QCAR_1.5_Beta_SDK_Documentation_for_Android.pdf

- Kim

It's about the scene in the Unity editor, the model does appear in the device after compliment.

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Here is the screenshot.

Thanks for your help.

Are you talking about the scene in the Unity editor, or the scene running on the device? This doesn't sound familiar... a screenshot might help.

- Kim