SYMPTOMS
Validating an XML Document with MSXML gives the following error message:
0xC00CE01E. Use of default namespace declaration attribute in DTD not supported.
STEPS TO REPRODUCE BEHAVIOR
1 - Start XMLBlueprint.
2 - Paste the following code into a new text document, and save the file as book.xml:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE book SYSTEM "book.dtd">
<book>
<chapter/>
</book>
3 - Paste the following code into a new text document, and save the file as book.dtd in the same folder as book.xml:
<!ELEMENT book (chapter)*>
<!ATTLIST book xmlns CDATA #FIXED "http://www.xmlblueprint.com/book">
<!ELEMENT chapter (#PCDATA)>
4 - Open file book.xml and validate by clicking XML > Validate. The error message will appear in the Output Window.
SOLUTION
To avoid this error, change <book> to <book xmlns="http://www.xmlblueprint.com/book">:
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE book SYSTEM "book.dtd">
<book xmlns="http://www.xmlblueprint.com/book">
<chapter/>
</book>
