The value of #CURRENT-DTD cannot be used to parse the markup document instance.
#6148 Run-time catchable error
The value of #CURRENT-DTD cannot be used to parse the markup document instance.
Additional Information
The DTD instance in #CURRENT-DTD has not been fully parsed.
The DTD instance in #CURRENT-DTD is not an SGML DTD.
The DTD instance in #CURRENT-DTD is not an XML DTD.
Explanation
This error is emitted when the SGML or XML parser reaches the instance and needs a DTD to validate it, but
the value assigned to #current-dtd is not appropriate for the task.