我必须复制工作区中已更改的文件，在目录中修复我的权限/所有权(不是我，不是所有者)，然后重新执行映射驱动器，打开工作区，重新执行Visual Studio项目的快捷方式(即使从理论上讲它应该与我映射的位置相同)，重新拉下该项目，然后再次复制我的更改.此时，Visual Studio再次缺少解决方案，因此我可以设置启动项目并运行调试器.我不确定所有权/权限如何弄乱.我认为在其他办公室的某个位置有一台服务器出现故障，然后我的权限/所有权混在一起了.我不确定为什么VS没有显示丢失的项目，但是在完成上述操作后就解决了.

I had to copy out changed files in my workspace, fix my permissions/ownership on my directory (it was no owner instead of me), re-do the mapped drive the workspace was on, re-do the shortcut to the Visual Studio project (even though it was supposed to theoretically be the same place I mapped), re-pull the project down, and copy my changes in again. At this point Visual Studio had the missing solutions in it again so I could set startup project and run the debugger. I'm not sure how the ownership/permissions got messed up. I think at one point the other office had a server go down, and maybe my permissions/ownership got mixed up then. I'm not sure why VS wasn't showing the missing projects, but it's fixed after doing the above.