You can disable XML Catalogs usage and specify paths to DTDs in the Preferences Dialog. In this case Serna will search for DTDs using the paths specified in the DTD Search Path field.
To call up the Preferences Dialog, choose .
Figure 1. XML Catalogs tab.
Type paths to DTD directories in the DTD Search Path field. Or you can click the Add button and select a directory in the Browse For Folder Dialog.
Paths to DTD directories should be separated by semicolons on Windows and by colons on Linux and Mac OS X.
The default value for the DTD search path is: sernaInstallationPath/xml/dtds.