[Mulgara-general] Errors using Descriptors

[Trina Myers]

Hi List,

Just a quick newbie question. I have set up a Mulgara server on a laptop and
am going through the tutorials for creating Descriptors. However I am unable
to list the Descriptors available. From the descriptor management page,
after I have deployed the descriptor in Mulgara, I am unable to invoke the
Descriptors, I get a http error 500 in the browser and the stack trace shows
the following:

ERROR:  'Unrecognized XSLTC extension 'mulgaraDescriptor:descriptor''
2007-10-09 15:25:02,125 ERROR Descriptor - Transformer failure:
java.lang.Runtim
eException: Unrecognized XSLTC extension 'mulgaraDescriptor:descriptor'
2007-10-09 15:25:02,125 ERROR ? - Exception for
/webservices/descriptor/execute?
_self=http%3A%2F%2Flocalhost%3A8080%2Fwebservices%2Fdescriptor%2Fdescriptors
%2Fd
efault%2FdescriptorListHTML.xsl&descriptorBase=http%3A%2F%2Flocalhost%3A8080
%2Fw
ebservices%2Fdescriptor%2Fdescriptors%2F&model=rmi%3A%2F%2Flocalhost%2Fserve
r1%2
3descriptors
org.mulgara.descriptor.DescriptorException: Transformer failure:
        at org.mulgara.descriptor.Descriptor.process(Descriptor.java:646)
        at
org.mulgara.descriptor.Descriptor.processToString(Descriptor.java:577
)
        at
org.mulgara.descriptor.DescriptorServlet.doGet(DescriptorServlet.java
:495)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:354
)
        at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicati
onHandler.java:294)
        at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:5
67)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1808)
        at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplication
Context.java:525)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1758)
        at org.mortbay.http.HttpServer.service(HttpServer.java:879)
        at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)
        at
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:952)
        at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)
        at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:
197)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:289)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:501)
Caused by: javax.xml.transform.TransformerException:
java.lang.RuntimeException:
 Unrecognized XSLTC extension 'mulgaraDescriptor:descriptor'
        at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transfor
m(Unknown Source)
        at
com.sun.org.apache.xalan.internal.xsltc.trax.TransformerImpl.transfor
m(Unknown Source)
        at org.mulgara.descriptor.Descriptor.process(Descriptor.java:638)
        ... 17 more
Caused by: java.lang.RuntimeException: Unrecognized XSLTC extension
'mulgaraDesc
riptor:descriptor'
        at
com.sun.org.apache.xalan.internal.xsltc.runtime.BasisLibrary.runTimeE
rror(Unknown Source)
        at
com.sun.org.apache.xalan.internal.xsltc.runtime.BasisLibrary.runTimeE
rror(Unknown Source)
        at
com.sun.org.apache.xalan.internal.xsltc.runtime.BasisLibrary.unsuppor
ted_ElementF(Unknown Source)
        at
GregorSamsa.http$colon$$slash$$slash$www$dot$w3$dot$org$slash$1999$sl
ash$xhtml$colon$template$dot$0()
        at GregorSamsa.applyTemplates()
        at GregorSamsa.transform()
        at
com.sun.org.apache.xalan.internal.xsltc.runtime.AbstractTranslet.tran
sform(Unknown Source)
        ... 20 more

I have looked at the list archives and this error has come up in the past
but I couldn't find the solution?

Any help would be appreciated
Cheers
Trina