If you have no immediately previous build (it has been deleted) then a new build will fail with the following error:

FATAL: null
java.lang.NullPointerException
at hudson.plugins.tfs.util.BuildWorkspaceConfigurationRetriever.getLatestForNode(BuildWorkspaceConfigurationRetriever.java:25)
at hudson.plugins.tfs.TeamFoundationServerScm.checkout(TeamFoundationServerScm.java:155)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1104)
at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:479)
at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:411)
at hudson.model.Run.run(Run.java:1280)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:139)

To reproduce:

1) Do a build
2) Delete this build
3) Do another build
4) This build will immediately fail with the previous error.