Unity 5.3 project upgrade to 5.4

The project sample (creating believable scene) not properly imported in unity 5.4. Although the project created in 5.3. Is there any to reorganize the project structure to fit unity 5.4?

What was the error message?

You don’t need to reorganize the project structure. You probably have one or two minor errors, which you just need to fix. @Ryiah 's question is the correct one to ask.

Besides the error messages the major fatality is all game objects on heirerchy panel not showing. I mean the gameobjects are exists but name not showing