When I do a poll from Visual Studio Online I get the following Exception:

No history entries were found for the item and version combination specified.
FATAL: For input string: ""
java.lang.NumberFormatException: For input string: ""
at java.lang.NumberFormatException.forInputString(Unknown Source)
at java.lang.Integer.parseInt(Unknown Source)
at hudson.plugins.tfs.model.Project.getRemoteChangesetVersion(Project.java:200)
at hudson.plugins.tfs.model.Project.getRemoteChangesetVersion(Project.java:214)
at hudson.plugins.tfs.TeamFoundationServerScm.checkout(TeamFoundationServerScm.java:189)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1415)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:652)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:88)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:561)
at hudson.model.Run.execute(Run.java:1678)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
at hudson.model.ResourceController.execute(ResourceController.java:88)
at hudson.model.Executor.run(Executor.java:231)