TFS 2013 - 错误不是添加积压但使用Scrum模板的选项

Question

我在TFS 2013中使用Scrum模板，据我所知，在New下的积压页面上，我应该可以选择添加Product Backlog Item还是Bug。没有下拉列表，只有添加产品待办事项项的选项。

为什么没有选项在这里添加Bug？

添加信息：我正在使用tfs 2013.4。我也试图导出我的processconfig，但我不知道我是否正确。这是我的processconfig.xml中的内容：

<?xml version="1.0" encoding="utf-8"?>
<ProjectProcessConfiguration>
  <FeedbackRequestWorkItems category="Microsoft.FeedbackRequestCategory" pluralName="Feedback Requests" singularName="Feedback Request">
    <States>
      <State type="InProgress" value="Active" />
      <State type="Complete" value="Closed" />
    </States>
  </FeedbackRequestWorkItems>
  <FeedbackResponseWorkItems category="Microsoft.FeedbackResponseCategory" pluralName="Feedback Responses" singularName="Feedback Response">
    <States>
      <State type="InProgress" value="Active" />
      <State type="Complete" value="Closed" />
    </States>
  </FeedbackResponseWorkItems>
  <PortfolioBacklogs>
    <PortfolioBacklog category="Microsoft.FeatureCategory" pluralName="Features" singularName="Feature">
      <AddPanel>
        <Fields>
          <Field refname="System.Title" />
        </Fields>
      </AddPanel>
      <Columns>
        <Column width="100" refname="System.WorkItemType" />
        <Column width="400" refname="System.Title" />
        <Column width="100" refname="System.State" />
        <Column width="50" refname="Microsoft.VSTS.Common.BusinessValue" />
        <Column width="100" refname="Microsoft.VSTS.Scheduling.TargetDate" />
        <Column width="200" refname="System.Tags" />
      </Columns>
      <States>
        <State type="Proposed" value="New" />
        <State type="InProgress" value="In Progress" />
        <State type="Complete" value="Done" />
      </States>
    </PortfolioBacklog>
  </PortfolioBacklogs>
  <RequirementBacklog category="Microsoft.RequirementCategory" parent="Microsoft.FeatureCategory" pluralName="Backlog items" singularName="Backlog item">
    <AddPanel>
      <Fields>
        <Field refname="System.Title" />
      </Fields>
    </AddPanel>
    <Columns>
      <Column width="100" refname="System.WorkItemType" />
      <Column width="400" refname="System.Title" />
      <Column width="100" refname="System.State" />
      <Column width="50" refname="Microsoft.VSTS.Scheduling.Effort" />
      <Column width="200" refname="System.IterationPath" />
      <Column width="200" refname="System.Tags" />
    </Columns>
    <States>
      <State type="Proposed" value="New" />
      <State type="Proposed" value="Approved" />
      <State type="InProgress" value="Committed" />
      <State type="Complete" value="Done" />
    </States>
  </RequirementBacklog>
  <TaskBacklog category="Microsoft.TaskCategory" parent="Microsoft.RequirementCategory" pluralName="Tasks" singularName="Task">
    <AddPanel>
      <Fields>
        <Field refname="System.Title" />
      </Fields>
    </AddPanel>
    <Columns>
      <Column width="400" refname="System.Title" />
      <Column width="100" refname="System.State" />
      <Column width="100" refname="System.AssignedTo" />
      <Column width="50" refname="Microsoft.VSTS.Scheduling.RemainingWork" />
    </Columns>
    <States>
      <State type="Proposed" value="To Do" />
      <State type="InProgress" value="In Progress" />
      <State type="InProgress" value="Done" />
      <State type="Complete" value="Closed" />
    </States>
  </TaskBacklog>
  <TypeFields>
    <TypeField refname="Microsoft.VSTS.Common.Activity" type="Activity" />
    <TypeField refname="Microsoft.VSTS.Common.BacklogPriority" type="Order" />
    <TypeField refname="Microsoft.VSTS.Feedback.ApplicationLaunchInstructions" type="ApplicationLaunchInstructions" />
    <TypeField refname="Microsoft.VSTS.Feedback.ApplicationStartInformation" type="ApplicationStartInformation" />
    <TypeField refname="Microsoft.VSTS.Feedback.ApplicationType" type="ApplicationType">
      <TypeFieldValues>
        <TypeFieldValue type="ClientApp" value="Client application" />
        <TypeFieldValue type="RemoteMachine" value="Remote machine" />
        <TypeFieldValue type="WebApp" value="Web application" />
      </TypeFieldValues>
    </TypeField>
    <TypeField refname="Microsoft.VSTS.Scheduling.Effort" type="Effort" />
    <TypeField format="{0} h" refname="Microsoft.VSTS.Scheduling.RemainingWork" type="RemainingWork" />
    <TypeField refname="System.AreaPath" type="Team" />
  </TypeFields>
  <Weekends>
    <DayOfWeek>Sunday</DayOfWeek>
    <DayOfWeek>Saturday</DayOfWeek>
  </Weekends>
  <WorkItemColors>
    <WorkItemColor primary="FFCC293D" secondary="FFFAEAE5" name="Bug" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Code Review Request" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Code Review Response" />
    <WorkItemColor primary="FF773B93" secondary="FFEEE2F2" name="Feature" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Feedback Request" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Feedback Response" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Impediment" />
    <WorkItemColor primary="FF009CCC" secondary="FFD6ECF2" name="Product Backlog Item" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Shared Steps" />
    <WorkItemColor primary="FFF2CB1D" secondary="FFF6F5D2" name="Task" />
    <WorkItemColor primary="FFFF9D00" secondary="FFFCEECF" name="Test Case" />
  </WorkItemColors>
</ProjectProcessConfiguration>

这是我的categories.xml代码：

<?xml version="1.0" encoding="utf-8"?>
<cat:CATEGORIES xmlns:cat="http://schemas.microsoft.com/VisualStudio/2008/workitemtracking/categories">
  <CATEGORY refname="Microsoft.BugCategory" name="Bug Category">
    <DEFAULTWORKITEMTYPE name="Bug" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.CodeReviewRequestCategory" name="Code Review Request Category">
    <DEFAULTWORKITEMTYPE name="Code Review Request" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.CodeReviewResponseCategory" name="Code Review Response Category">
    <DEFAULTWORKITEMTYPE name="Code Review Response" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.FeatureCategory" name="Feature Category">
    <DEFAULTWORKITEMTYPE name="Feature" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.FeedbackRequestCategory" name="Feedback Request Category">
    <DEFAULTWORKITEMTYPE name="Feedback Request" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.FeedbackResponseCategory" name="Feedback Response Category">
    <DEFAULTWORKITEMTYPE name="Feedback Response" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.HiddenCategory" name="Hidden Types Category">
    <DEFAULTWORKITEMTYPE name="Code Review Request" />
    <WORKITEMTYPE name="Code Review Response" />
    <WORKITEMTYPE name="Feedback Request" />
    <WORKITEMTYPE name="Feedback Response" />
    <WORKITEMTYPE name="Shared Steps" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.RequirementCategory" name="Requirement Category">
    <DEFAULTWORKITEMTYPE name="Product Backlog Item" />
    <WORKITEMTYPE name="Bug" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.SharedStepCategory" name="Shared Step Category">
    <DEFAULTWORKITEMTYPE name="Shared Steps" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.TaskCategory" name="Task Category">
    <DEFAULTWORKITEMTYPE name="Task" />
  </CATEGORY>
  <CATEGORY refname="Microsoft.TestCaseCategory" name="Test Case Category">
    <DEFAULTWORKITEMTYPE name="Test Case" />
  </CATEGORY>
</cat:CATEGORIES>