Error : A project already exists with this name.

转自：http://www.coderanch.com/t/581702/vc/Error-project-exists

Q：

Actually I deleted a Dynamic web Project from my file system directly and when eclipse was not running. 
And when I started my eclipse the project was deleted from Project Explorer but when I tried to create a new Dynamic project with same name as the one which I deleted from filesystem then I am getting this error. 
Is there any solution to this problem ?

A： Hmm, when I do this there is still a project folder for that project in Eclipse, but the folder is "greyed out". Usually what I do is delete the folder within the Project Explorer and then I can create the project again.

A： Try doing a Refresh on the project Explorer view.  The Eclipse workspace metatdata still thinks the project is there, but the project directory itself is gone, so Eclipse has become out of sync with its underlying filesystem.  Eclipse will probably ask you to fix that problem when you refresh, but you should also be able to do what Peter said.