NetBeans open project problem

I created a NetBeans project. I took the project folders zipped to another machine and tried opening it in NetBeans. NetBeans didn't identify it as a NetBeans project. I have transfered projects in this way before but why is it not working now? Are any of my project files corrupted. Is there any way to retrieve my files from this?

Try using create new project from existing resources. This may solve the issue.

I just copied whole project into place in system where NetBeans stores projects (in windows it's user\username\Documents\NetBeansProjects\ by default), then started NetBeans and voila - worked great :)