1. Some projects cannot be imported because they already exist in the workspace
2. Some projects were hidden because they exist in the workspace directory
Sometimes the above two errors will occur when eclipse or myeclipse import the project, and the IDE does not allow us to import. The specific reason is that a project with the same name already exists in the workspace of the IDE, so it cannot be imported.
The solution is to modify the project name:
1. Right click --- refactor --- rename
2. The project whose name is to be modified in the workspace---Open the .project file---Modify <name>projectName</name>
3. Try to create a new working directory, this method can also be
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Reference: velocityreviews.com
ps: It is true that modifying the project name can be solved, but it seems that the previous one can't be found (there is obviously no under the project directory), so it cannot be deleted, so I have to change the name, which is really helpless!!
Thinking - if you can't join it, there must be a previous mark that records your project information, that is to say, if you find that mark and delete it, we don't need to change the name. After my groping
E:\workspace\eclipseworkspace\.metadata\.plugins\org.eclipse.core.resources\.projects is in this directory on my version of eclipse
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