I'm trying to migrate from TFS 2012 Update 2 to TFS 2013. Following the documentation I installed TFS 2012.2 on the new hardware, backed up/restored the databases, then installed TFS 2013 as an upgrade.
I can see the Team Project and the builds. The problem is when I right click a build to queue up a new one and click on the Parameters tab I just get a blank panel. My best guess is there was an error loading the parameters. Note those builds worked fine in TFS 2012.2.
If I create a new build from scratch and I use their new default template (TfvcTemplate.12.xaml) I still get the same error.
I don't see any errors in the output window or the event log.
It turns out it's a known bug with VS2013 connecting to TFS2013
For future reference, this was fixed in Visual Studio 2013 Update 1 (see KB 2911573).
来源：https://stackoverflow.com/questions/19601446/upgrading-to-tfs-2013-parameters-tab-is-blank-when-queuing-up-a-build