团队构建（XAML）失败，错误TF215097

Question

经过数周的正常操作后，TFS 2015 XAML构建突然失败，错误TF215097。

TF215097: An error occurred while initializing a build for build definition \xxxxxxxxxxxxx\xxxxxxxxxxx-DEV: 
Exception Message: A procedure imported by 'Microsoft.VisualBasic.Activities.Compiler.dll' could not be loaded. (type FileLoadException)
Exception Stack Trace:    at Microsoft.VisualBasic.Activities.VisualBasicHelper.CompileT
   at Microsoft.VisualBasic.Activities.VisualBasicHelper.CompileT
   at Microsoft.VisualBasic.Activities.VisualBasicHelper.CompileT
   at Microsoft.VisualBasic.Activities.VisualBasicValue1.CacheMetadata(CodeActivityMetadata metadata)
   at System.Activities.CodeActivity1.OnInternalCacheMetadataExceptResult(Boolean createEmptyBindings)
   at System.Activities.Activity1.OnInternalCacheMetadata(Boolean createEmptyBindings)
   at System.Activities.Activity.InternalCacheMetadata(Boolean createEmptyBindings, IList1& validationErrors)
   at System.Activities.ActivityUtilities.ProcessActivity(ChildActivity childActivity, ChildActivity& nextActivity, Stack1& activitiesRemaining, ActivityCallStack parentChain, IList1& validationErrors, ProcessActivityTreeOptions options, ProcessActivityCallback callback)
   at System.Activities.ActivityUtilities.ProcessActivityTreeCore(ChildActivity currentActivity, ActivityCallStack parentChain, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList1& validationErrors)
   at System.Activities.ActivityUtilities.CacheRootMetadata(Activity activity, LocationReferenceEnvironment hostEnvironment, ProcessActivityTreeOptions options, ProcessActivityCallback callback, IList1& validationErrors)
   at System.Activities.Validation.ActivityValidationServices.InternalActivityValidationServices.InternalValidate()
   at Microsoft.TeamFoundation.Build.Workflow.WorkflowHelpers.ValidateWorkflow(Activity activity, ValidationSettings validationSettings)
   at Microsoft.TeamFoundation.Build.Hosting.BuildProcessCache.LoadFromXaml(String workflowXaml, TextExpressionImports textExpressionImports)
   at Microsoft.TeamFoundation.Build.Hosting.BuildControllerWorkflowManager.PrepareRequestForBuild(WorkflowManagerActivity activity, IBuildDetail build, WorkflowRequest request, IDictionary`2 dataContext)
   at Microsoft.TeamFoundation.Build.Hosting.BuildWorkflowManager.TryStartWorkflow(WorkflowRequest request, WorkflowManagerActivity activity, BuildWorkflowInstance& workflowInstance, Exception& error, Boolean& syncLockTaken)

构建定义本身和使用的构建活动在平均时间内没有变化。

环境正在Windows Server 2012r2上运行Visual Studio 2015更新1，Team Foundation Server 2015 Update 1。

Answer 1

事实证明，此错误是由安装了一些通过Windows Update提供的修补程序引起的。 following KB article确切地解释了根本原因。

卸载KB3097997和KB3098779并重新启动服务器解决了这个问题。重新启动后，自动重新应用修补程序，而不会出现问题重新铺设。

感谢我的colleague Jasper验证：）。