diff --git a/xdoc/src/plugin-resources/site.jsl b/xdoc/src/plugin-resources/site.jsl
index 649a1ce4..204c09ac 100644
--- a/xdoc/src/plugin-resources/site.jsl
+++ b/xdoc/src/plugin-resources/site.jsl
@@ -255,7 +255,9 @@
         </div>
 
         <div id="breadcrumbs">
-          <maven:property var="version" name="maven.xdoc.version" defaultValue="${pom.currentVersion}"/>
+          <j:if test="${!empty(pom.currentVersion)}">
+            <maven:property var="version" name="maven.xdoc.version" defaultValue="${pom.currentVersion}"/>
+          </j:if>
                 
           <j:set var="breadcrumbsUsed" value=""/>  
           <x:if select="$nav/body/breadcrumbs">
diff --git a/xdoc/xdocs/changes.xml b/xdoc/xdocs/changes.xml
index 15acf798..736543cb 100644
--- a/xdoc/xdocs/changes.xml
+++ b/xdoc/xdocs/changes.xml
@@ -27,6 +27,7 @@
   </properties>
   <body>
     <release version="1.10" date="in SVN">
+      <action dev="ltheussl" type="fix" issue="MPXDOC-174">Unclear error message when <code>&lt;currentVersion/&gt;</code> in <code>project.xml</code> file not defined.</action>
       <action dev="ltheussl" type="add" issue="MPXDOC-141" due-to="M. Sean Gilligan">Perform JSL transforms on xdocs <strong>only</strong> when they have changed.</action>
       <action dev="ltheussl" type="add" issue="MPXDOC-169">Add xdoc tag library documentation to the plugin site.</action>
       <action dev="ltheussl" type="fix" issue="MPXDOC-87">Fix <code>xdoc:validate</code>.</action>
