Nested "replaceproperties" error

This is actually an old thread that I need to resurrect. However, the original thread had evolved to a point where it no longer really related to the original topic so I hope no one gets upset that I am starting a new one. Anyway, I am trying to increment a serial number for my build and on advice wound up trying to use "buildnumber". Here is my current xml:

<?xml version="1.0" encoding="UTF-8"?> 
<project name="KCBSEvents" default="jar" basedir=".">
	<property name="build.properties" value="resource/build.properties"/>
	<property name="KCBSDir" value="src/KCBSEvents" />
	<property name="excludelist" value="build.bat,makejar.xml" />
	<target name="checkOS">
		<condition property="isWindows">
			<os family="windows" />
		</condition>
		<condition property="isLinux">
			<os family="unix" />
		</condition>
	</target>
	<target name="if_windows" depends="checkOS" if="isWindows">
		<property name="jarfile" value="C:\temp\KCBSEvents.jar" />
		<property name="antcontrib" value="H:\html\Applets\ant-contrib" />
	</target>
	<target name="if_linux" depends="checkOS" if="isLinux">
		<property name="jarfile" value="/tmp/KCBSEvents.jar" />
		<property name="antcontrib" value="/var/www/html/Applets/ant-contrib" />
	</target>
	<target name="setclass" depends="if_linux,if_windows">
		<taskdef resource="net/sf/antcontrib/antcontrib.properties">
			<classpath>
				<pathelement location="${antcontrib}" />
			</classpath>
		</taskdef>
	</target>
	<target name="incserial" depends="setclass">
		<buildnumber />
		<copy todir="bin">
			<fileset dir="${KCBSDir}">
				<include name="${build.properties}" />
			</fileset>
			<filterchain>
				<replaceproperties />
			</filterchain>
		</copy>
	</target>
	<target name="jar" description="Compile serialized jar" depends="incserial,if_windows,if_linux">
		<echo message="Using destination file ${jarfile}" />
		<jar destfile="${jarfile}" basedir="bin" excludes="${excludelist}">
			<manifest>
				<attribute name="Manifest-Version" value="1.0"/>
				<attribute name="Created-By" value="1.6.0 (Sun Microsystems Inc.)" />
				<attribute name="Main-Class" value="KCBSEvents.KCBSEvents" />
			</manifest>
		</jar>  
	</target>
</project>

The error I get is:

newmakejar.xml:31: filterchain doesn't support the nested "replaceproperties" element.

Can someone help me get this working. Thanks.

I think you want <expandproperties/>, not <replaceproperties/>.

Thanks. That got rid of the error and the jar file now builds. However, the serial number is not being incremented. I obviously am still missing a piece of the puzzle.

I think I figured out what is happening but not how to fix it. If I understand correctly, buildnumber simply sets the variable ${build.number}. The question becomes how to get that into my resource file. Do i put that variable name directly into the file or do I still need to do some kind of substitution in the build XML?

I got it. I needed to add a propertyfile task after the copy.