XML parser error when running a saxonb-xslt process

Question

I am processing an XML document with saxonb-xslt, the command look like so:

saxonb-xslt -s:Transform.xsl -xsl:Transform.xsl -xi:on -ext:on

and I get this error:

Error The XML parser reported one or more errors Failed to compile stylesheet. 1 error detected.

I need to troubleshoot this problem. How can I get more information about this error?

Background information:

• I am running saxonb-xslt (v. Saxon 9.1.0.8J) on Debian 9.
• The stylesheet compiles just fine with Oxygen on a windows machine, so I suppose the problem is with the XML parser saxonb-xslt uses on my linux machine.