If I try to open my last Wireframe project, the Import Tool says: "Some projects cannot be imported because they already exist in the Workspace". How can I open my recently closed project?

I was forced to copy the files to annother folder, but now I can't open the Screens any more. If I try to open each screen with a double click, the Wireframe doesn't recognise the links between the screens.

Do you habe any ideas how I can solve this Problem.

I've solved it by myself :-) I found the "Project Explorer" :-)