public async Task EnsureExceptionWorkItemType(Guid processId, string processName, string workItemTypeName)
        {
            var witReferenceName    = $"{processName}.{workItemTypeName}";
            var processWorkItemType = await GetWorkItemType(processId, witReferenceName);

            if (processWorkItemType == null)
            {
                var createWorkItemType = new CreateProcessWorkItemTypeRequest()
                {
                    Name        = workItemTypeName,
                    Description = "Used for tracking unhandled application exceptions",
                    Color       = "f6546a",
                    Icon        = "icon_airplane",
                    //InheritsFrom = "Microsoft.VSTS.WorkItemTypes.Bug"
                };
                processWorkItemType = await witProcessClient.CreateProcessWorkItemTypeAsync(createWorkItemType, processId);
            }

            await EnsureFieldExists("Custom.ExceptionApplication", "Application", "Application", processWorkItemType.ReferenceName, processId);


            //Add page
            var page = witProcessClient.AddPageAsync(new Page()
            {
                Label    = "Exception",
                PageType = PageType.Custom,

                Sections = new List <Section>()
                {
                    new Section()
                    {
                        Id     = "Section1",
                        Groups = new List <Group>()
                        {
                            new Group()
                            {
                                Label    = "MyGroup",
                                Controls = new List <Control>()
                                {
                                    new Control()
                                    {
                                        Id          = "Custom.ExceptionApplication",
                                        Label       = "Application",
                                        ControlType = "FieldControl",
                                        Name        = "Application",
                                        Visible     = true
                                    }
                                }
                            }
                        }
                    }
                }
            }, processId, processWorkItemType.ReferenceName).Result;

            ////Add fields
            //var fields = new string[]
            //{
            //            TfsStoreWithException.Application,
            //            TfsStoreWithException.AssignedToFieldName,
            //            TfsStoreWithException.CommentFieldName,
            //            TfsStoreWithException.RefCountFieldName,
            //            TfsStoreWithException.ExceptionReporterFieldName,
            //            TfsStoreWithException.BuildVersionFieldName,
            //            TfsStoreWithException.ExceptionMessageFieldName,
            //            TfsStoreWithException.ExceptionTypeFieldName,
            //            TfsStoreWithException.ClassFieldName,
            //            TfsStoreWithException.MethodFieldName,
            //            TfsStoreWithException.SourceFieldName,
            //            TfsStoreWithException.StackTraceFieldName,
            //            TfsStoreWithException.StackChecksumFieldName,
            //            TfsStoreWithException.AssemblyName
            //    };
        }