xlink.xml.err

下载来的一个看图软件的源代码

./test/valid/xlink.xml:450: validity error: ID dt-arc already defined
	<p><termdef id="dt-arc" term="Arc">An <term>arc</term> is contained within an 
                                   ^
./test/valid/xlink.xml:530: validity error: IDREF attribute def reference an unknown ID "dt-xlg"

^