GenCheckinNotesUpdateWorkItems throws "Object reference not set to an instance of an object"

Question

Our builds throw errors in GenCheckinNotesUpdateWorkItems.  Some of the log:

 

Target "CoreGetChangesetsAndUpdateWorkItems" in file "C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets" from project "R:\Teambuild\build\LGD\LGD\CI Build\LDG\CI Dev Build\BuildType\TFSBuild.proj":

Using "GenCheckinNotesUpdateWorkItems" task from assembly "f:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\Microsoft.TeamFoundation.Build.Tasks.VersionControl.dll".

Task "GenCheckinNotesUpdateWorkItems"

GenCheckinNotesUpdateWorkItems TeamFoundationServerUrl="http://ohcleiis1375:8080/" BuildUri="vstfs:///Build/Build/3307" CurrentLabel="CI Dev Build_20080811.19@$/LDG" LastLabel="CI Dev Build_20080811.18@$/LDG" UpdateWorkItems=True BuildNumber="CI Dev Build_20080811.19" BuildUri="vstfs:///Build/Build/3307"

Analyzing labels CI Dev Build_20080811.18@$/LDG and CI Dev Build_20080811.19@$/LDG.

Querying item history.

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets(1036,5,1036,5): warning : Object reference not set to an instance of an object.

The previous error was converted to a warning because the task was called with ContinueOnError=true.

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: The "GenCheckinNotesUpdateWorkItems" task failed unexpectedly.

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: System.NullReferenceException: Object reference not set to an instance of an object.

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: at Microsoft.TeamFoundation.VersionControl.Client.Changeset.get_WorkItems()

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: at Microsoft.TeamFoundation.Build.Tasks.GenCheckinNotesUpdateWorkItems.DoUpdateWorkitems(Dictionary`2 changesets)

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: at Microsoft.TeamFoundation.Build.Tasks.GenCheckinNotesUpdateWorkItems.ExecuteInternal()

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: at Microsoft.TeamFoundation.Build.Tasks.Task.Execute()

C:\Program Files\MSBuild\Microsoft\VisualStudio\TeamBuild\Microsoft.TeamFoundation.Build.targets : warning MSB4018: at Microsoft.Build.BuildEngine.TaskEngine.ExecuteInstantiatedTask(EngineProxy engineProxy, ItemBucket bucket, TaskExecutionMode howToExecuteTask, ITask task, Boolean& taskResult)

The previous error was converted to a warning because the task was called with ContinueOnError=true.

Build continuing because "ContinueOnError" on the task "GenCheckinNotesUpdateWorkItems" is set to "true".

Done executing task "GenCheckinNotesUpdateWorkItems" -- FAILED.

Done building target "CoreGetChangesetsAndUpdateWorkItems" in project "TFSBuild.proj".

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Help - Any ideas?

 

Answer 1

 

In the call stack:

 

>>MSB4018: at Microsoft.TeamFoundation.VersionControl.Client.Changeset.get_WorkItems()<<

 

Did you somehow truncate/delete workitems from the TFS project?

Answer 2

dockenator

 

We are changing the issue type to “Comment” because you have not followed up with the necessary information. If you have more time to look at the issue and provide more information, please feel free to change the issue type back to “Question”.

Answer 3

I was wondering if you were ever able to reach a resolution to this issue. We are dealing with  the exact same issue you've listed. Any feedback you could provide would be greatly appreciated.