UAP studio 启动某个工作空间，一致在checking files

找到解决方案：参考

https://blog.youkuaiyun.com/u014523777/article/details/80993526

本人测试后，方案二有效：

进入workspace/.metadata/.plugins/目录
      重命名 org.eclipse.core.resources to org.eclipse.core.resources_old.
      然后重启 eclipse
      Close eclipse
      Delete org.eclipse.core.resources
      Rename org.eclipse.core.resources_old back to org.eclipse.core.resources