The <svn> type doesn't support the nested "info" element.

<path id="path.svnant">
     <fileset dir="${svn.lib.dir}" includes="**/*.jar" />
</path>

<typedef
      resource="org/tigris/subversion/svnant/svnantlib.xml"
      classpathref="path.svnant"
/>

<svnSetting
    javahl="false"
    svnkit="true"
    username="${svn.repo.user}"
    password="${svn.repo.password}"
    failonerror="true"
    id="svn.settings"
/>

<target name="get.latest.svn.rev">
    <antcall target="check.svn.revision.numbers.requested.and.password.set"/>
    <echo level="info" message="Getting head rev number, libs are in ${svn.lib.dir}"/>
        <property name="svn.info.lastRev" value="Unable to connect to repository to retrieve this"/>
        <svn refid="svn.settings">
            <singleinfo target="${svn.repo.url}" property="svn.info.lastRev" request="lastRevision" />
        </svn>
        <echo level="info" message="Last rev number using svn singleinfo is ${svn.info.lastRev}"/>
    </target>