Hi I'm trying to create a PDF from DITA content, using Chemistry but my build fails. I get this error message: BUILD FAILED C:\Program Files\Oxygen XML Author 19\frameworks\dita\DITA-OT2.x\build.xml:45: The following error occurred while executing this line: C:\Program Files\Oxygen XML Author 19\frameworks\dita\DITA-OT2.x\plugins\com.oxygenxml.pdf.css\build.xml:194: The following error occurred while executing this line: C:\Program Files\Oxygen XML Author 19\frameworks\dita\DITA-OT2.x\plugins\com.oxygenxml.pdf.css\build.xml:132: Fatal error during transformation using C:\Program Files\Oxygen XML Author 19\frameworks\dita\DITA-OT2.x\plugins\com.oxygenxml.pdf.css\xsl\post-process.xsl: Cannot convert string "" to xs:decimal: no digits in value; SystemID: file:/C:/Program%20Files/Oxygen%20XML%20Author%2019/frameworks/dita/DITA-OT2.x/plugins/com.oxygenxml.pdf.css/xsl/post-process-tables.xsl; Line#: 100; Column#: 80 Any ideas? Thanks Yves