Some projects cannot be imported because they already exist in the workspace

用Eclipse工具进行开发的时候，删除某工程文件后想重新加载，会出现“Some projects cannot be imported because they already exist in the workspace”

解决方案：

  1、右键工程名称点击“import”

  2、打开“import projects”界面，选择相应的工程文件路径，不要选中“copy projects into workspace”即可 点击“finish”，即可导入文件