I have this warning message, but I have no idea of what to look for to solve it.

Recoverable error on line 9
  FODC0002: Exception thrown by URIResolver: Invalid relative URI
  {\n%20%20%20\n%20%20%20%20%20%2...}: Illegal character in path at index 0:

May this could be that :
<?xml version="1.1" encoding="iso-8859-1"?>
<!DOCTYPE xsl:stylesheet [
<!ENTITY nbsp "&#160;">
<!ENTITY deg "&#176;">
<!ENTITY eacute "&#233;">
<xsl:transform xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:n="http://xemelios.org/schemas/bourses" version="2.0" exclude-result-prefixes="xsl n">
    <xsl:output method="xhtml" encoding="ISO-8859-1" indent="yes"/>
    <xsl:param name="repository" select="document(.)"/>

    <xsl:template match="*"> </xsl:template>

I use a custom URI Resolver.

Any idea ?