When you have queued a build and at the end you got following error :
TF214007: No build was found with the URI vstfs:///Build/Build/<Build Number>. Either the URI does not exist, or <domain\user> does not have permission to access it.
This error doesn't tell you a lot. During the build, you can open the build window
Sometimes the link to the log file is availlable, but not always. When it's availlable and you click on it to open, you got the message that the file isn't found. You will also see that no files are copied to the droplocation, but everything (including the log file) is availlable in the build directory.
You will also see that the Build Definition isn't availlable. You can open it during the build, but that's all.
Mostly this happens when a build partially succeeded?
So be sure to check that all the permissions are set correctly (tfsservice account needs write permissions). If this is OK, you also could check the retention policies. Mostly you will see that the retention for Partly succeeded builds is set to "Keep none". In this case as soon as the build is finished and patially succeeded, everything will be thrown away. And this even before the copy to the droplocation is done.