Turns out we have SaxonHE 9.8.0.5, a version which does not support XSLT 1. The two obvious solutions are to use `xsltproc` instead or update to Saxon 9.8.0.7 (or perhaps later). For the moment I am doing the former. ________________________________ It is using Saxon … or, at least, that’s what <factory name="net.sf.saxon.TransformerFactoryImpl"/> implies to me. ________________________________ Will Saxon not run XSLT 1.0? I'd have thought it would. How do we run XSLT 1 from ant? (In particular, from P5/antbuilder.xml. I tried "trax", but get a fatal “XSLT 1.0 compatibility mode is not available in this configuration”.)

Thanks Martin (and Hugh)! While I believe you, I don’t actually know how to do that. (I would guess set the factory/@name to either "org.apache.xalan.processor.TransformerFactoryImpl" or "org.apache.xalan.xsltc.trax.TransformerFactoryImpl", but would not know which nor if there are any parameters that need be set.) That said, the <exec> of `xsltproc` solution is working. ________________________________ I think if you use the standard XSLT task: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fant.apache.... and point it at Xalan, that should do it.