title: TFS2012 CheckinException
body: <p>I have an issue using Builds i keep getting this error:</p>
  
  <pre><code> Exception Message: TF10141: No files checked in: resolve the conflicts and try again. (type CheckinException)
  Exception Stack Trace:    at Microsoft.TeamFoundation.VersionControl.Client.Client.ReportCheckInConflictsFailuresAndThrow(Workspace workspace, CheckinResult checkinResult, Failure[] conflicts, Failure[] failures, Boolean noAutoResolve, Int32 operationId)
     at Microsoft.TeamFoundation.VersionControl.Client.Workspace.CheckInInternal(WorkspaceCheckInParameters parameters, Int32 operationId)
     at Microsoft.TeamFoundation.VersionControl.Client.Workspace.CheckIn(WorkspaceCheckInParameters checkinParameters)
     at TfsBuild.Versioning.Activities.CheckInFiles.Execute(CodeActivityContext context) in c:\Builds\4_2\BuildAndDeploy\BuildAndDeploy\Sources\tfsversioning\TfsBuild.Versioning.Activities\CheckInFiles.cs:line 55
     at System.Activities.CodeActivity.InternalExecute(ActivityInstance instance, ActivityExecutor executor, BookmarkManager bookmarkManager)
     at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)
  </code></pre>
  
  <p>But the problem is that i haven't any conflicts ore checked anything in. The build was triggered, because of an other project. An solution is to run the build again and it passes. Any idea why this happens?</p>