How to add tag in onenote 2016 addin?

I want to add tag in onenote.
This is my xml
<one:Page xmlns:one="http://schemas.microsoft.com/office/onenote/2013/onenote" ID="{6AE16611-0233-4637-82FB-A06EBD59E67B}{1}{E195279283666239078786188578264132881573641}" name="TEST" dateTime="2016-08-14T07:58:13.000Z" lastModifiedTime="2016-08-14T07:58:20.000Z" pageLevel="1" isCurrentlyViewed="true" selected="partial" lang="zh-CN">
<one:TagDef index="0" name="todo" type="0" symbol="3" />
<one:QuickStyleDef index="0" name="PageTitle" fontColor="automatic" highlightColor="automatic" font="Calibri Light" fontSize="20.0" spaceBefore="0.0" spaceAfter="0.0" />
<one:QuickStyleDef index="1" name="p" fontColor="automatic" highlightColor="automatic" font="Calibri" fontSize="11.0" spaceBefore="0.0" spaceAfter="0.0" />
<one:PageSettings RTL="false" color="automatic">
<one:PageSize>
<one:Automatic />
</one:PageSize>
<one:RuleLines visible="false" />
</one:PageSettings>
<one:Title lang="en-US">
<one:OE author="cs" authorInitials="c" authorResolutionID="<resolutionId provider="Windows Live" hash="T3nqp89ZqJq+c8w3ZgFFOA=="><localId cid="c9aa877e2e257d2c"/></resolutionId>" lastModifiedBy="cs东风" lastModifiedByInitials="c" lastModifiedByResolutionID="<resolutionId provider="Windows Live" hash="T3nqp89ZqJq+c8w3ZgFFOA=="><localId cid="c9aa877e2e257d2c"/></resolutionId>" creationTime="2016-08-14T07:58:16.000Z" lastModifiedTime="2016-08-14T07:58:16.000Z" objectID="{0692A3BA-BED1-4824-BE0C-71F1AF2B57C7}{17}{B0}" alignment="left" quickStyleIndex="0" style="font-family:Calibri;font-size:20.0pt">
<one:T>
<![CDATA[TEST]]>
</one:T>
</one:OE>
</one:Title>
<one:Outline selected="partial" author="cs" authorInitials="c" lastModifiedBy="cs" lastModifiedByInitials="c" lastModifiedTime="2016-08-14T07:58:20.000Z" objectID="{0692A3BA-BED1-4824-BE0C-71F1AF2B57C7}{31}{B0}">
<one:Position x="36.0" y="104.400001525879" z="0" />
<one:Size width="72.0" height="18.87346458435059" />
<one:OEChildren selected="partial">
<one:OE authorResolutionID="<resolutionId provider="Windows Live" hash="T3nqp89ZqJq+c8w3ZgFFOA=="><localId cid="c9aa877e2e257d2c"/></resolutionId>" lastModifiedByResolutionID="<resolutionId provider="Windows Live" hash="T3nqp89ZqJq+c8w3ZgFFOA=="><localId cid="c9aa877e2e257d2c"/></resolutionId>" creationTime="2016-08-14T07:58:20.000Z" lastModifiedTime="2016-08-14T07:58:20.000Z" objectID="{0692A3BA-BED1-4824-BE0C-71F1AF2B57C7}{32}{B0}" alignment="left" quickStyleIndex="1" selected="partial" style="font-family:'Microsoft YaHei';font-size:11.0pt">
<one:T>
<![CDATA[me]]>
</one:T>
<one:T selected="all">
<![CDATA[]]>
</one:T>
</one:OE>
<one:OE>
<one:T>
<![CDATA[TEST1]]>
</one:T>
<one:OEChildren>
<one:OE>
<one:Tag completed="false" disabled="false" />
<one:T>
<![CDATA[some]]>
</one:T>
</one:OE>
</one:OEChildren>
</one:OE>
</one:OEChildren>
</one:Outline>
</one:Page>
IF I remove the tag element, the xml wil work.
What should I do to make it work?