Many students in the program established in eclipse, the near future may not be maintained, so the project is closed from the side of the eclipse. Note is off by simply connecting your relationship with the eclipse of the project to lift and remove items no source workspace space. Suddenly one day you have to maintain, and to open this project in the eclipse. By using file-import-existing projects into workspace the way this case is not applicable because the project has been in the workspace space, when you select the root directory for the workspace, you will be prompted to projects already in the workspace workspace, the project is not gray check. Provides a method here:
The easiest way is to create a new project, you want to import the same project name and project name. This automatically associate on.
Original link: https: //blog.csdn.net/chengmaoning/article/details/9624607