Hi,
From the past few day, I have started getting error with my TFS Plugin integrated with Jenkins. I have tried clearing the tfs cache but nothing helped.

Below is the stack trace:

FATAL: java.lang.NullPointerException: webService must not be null
java.lang.RuntimeException: java.lang.NullPointerException: webService must not be null
at hudson.plugins.tfs.model.Server.execute(Server.java:226)
at hudson.plugins.tfs.model.Project.extractChangesetNumber(Project.java:272)
at hudson.plugins.tfs.model.Project.getRemoteChangesetVersion(Project.java:268)
at hudson.plugins.tfs.model.Project.getRemoteChangesetVersion(Project.java:284)
at hudson.plugins.tfs.TeamFoundationServerScm.recordWorkspaceChangesetVersion(TeamFoundationServerScm.java:359)
at hudson.plugins.tfs.TeamFoundationServerScm.checkout(TeamFoundationServerScm.java:308)
at hudson.model.AbstractProject.checkout(AbstractProject.java:1278)
at hudson.model.AbstractBuild$AbstractBuildExecution.defaultCheckout(AbstractBuild.java:604)
at jenkins.scm.SCMCheckoutStrategy.checkout(SCMCheckoutStrategy.java:86)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:529)
at hudson.model.Run.execute(Run.java:1720)
at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:43)
at hudson.model.ResourceController.execute(ResourceController.java:98)
at hudson.model.Executor.run(Executor.java:404)
Caused by: java.lang.NullPointerException: webService must not be null
at com.microsoft.tfs.util.Check.throwForNull(Check.java:116)
at com.microsoft.tfs.util.Check.notNull(Check.java:22)
at com.microsoft.tfs.core.clients.versioncontrol.VersionControlClient.<init>(VersionControlClient.java:439)
at com.microsoft.tfs.core.clients.versioncontrol.VersionControlClient.<init>(VersionControlClient.java:515)
at com.microsoft.tfs.core.config.client.DefaultClientFactory$7.newClient(DefaultClientFactory.java:228)
at com.microsoft.tfs.core.config.client.DefaultClientFactory.newClient(DefaultClientFactory.java:92)
at com.microsoft.tfs.core.TFSConnection.getClient(TFSConnection.java:1459)
at com.microsoft.tfs.core.TFSTeamProjectCollection.getVersionControlClient(TFSTeamProjectCollection.java:376)
at hudson.plugins.tfs.model.Server.getVersionControlClient(Server.java:207)
at hudson.plugins.tfs.commands.RemoteChangesetVersionCommand.call(RemoteChangesetVersionCommand.java:56)
at hudson.plugins.tfs.commands.RemoteChangesetVersionCommand.call(RemoteChangesetVersionCommand.java:33)
at hudson.remoting.LocalChannel.call(LocalChannel.java:45)
at hudson.plugins.tfs.model.Server.execute(Server.java:222)
... 13 more
Finished: FAILURE