This morning all our builds started failing with the following in the error logs
the reason was because the drop location directory had accumilated too many builds and had run out of space. Rather than deleting the builds through explorer in the drop location you should remove them through TFS so that TFS knows about it.
Here is the command to do so: TfsBuild delete <TeamFoundationServer> <TeamProject> <BuildNumbers> [/noprompt]


