Weird error in using Ant

This is my build.xml using ant.

<?xml version="1.0" encoding="UTF-8"?>
<project name="compile" default="css.concatenate" basedir=".">
<property name="charset" value="utf-8"/>

<!-- compile LESS -->

<target name="css.concatenate">
    <concat destfile="${basedir}/src/main/webapp/cons/cons.less">
        <fileset dir="${basedir}/src/main/webapp/less">
            <include name="*.less"/>
        </fileset>
    </concat>
    <echo>cons is done!</echo>
</target>

<target name="lessc" depends="css.concatenate">
    <echo>now in compression</echo>
    <java classname="CpLess" fork="true">
        <arg value="${basedir}/src/main/webapp/cons"/><!-- input folder that contains less file -->
        <arg value="${basedir}/src/main/webapp/css"/><!-- output folder -->
        <classpath>
            <pathelement location="${basedir}/lib/commons-logging.jar"/>
            <pathelement location="${basedir}/lib/js.jar"/>
            <pathelement location="${basedir}/lib/lesscss-engine.jar"/>
            <pathelement location="${basedir}/lib/yuicompressor.jar"/>
            <pathelement location="${basedir}/lib/zkjszips.jar"/>
            <pathelement location="${basedir}/lib/zkless.jar"/>
            <pathelement location="${basedir}/lib/zul.jar"/> <!-- only needed if using _zkmixins.less -->
        </classpath>
    </java>
</target>

<target name="rename" depends="lessc">
    <echo>renaming...</echo>
    <rename src="${basedir}/src/main/webapp/css/cons.css.dsp" dest="${basedir}/src/main/webapp/css/core.css"/>
    <delete file="${basedir}/src/main/webapp/css/cons.css.dsp.src"/>
    <echo>rename done</echo>
</target>


<target name="trasition" >
            <echo> in trasition </echo>

</target>



</project>

When I run this, it comes into the error like this:

Buildfile: C:\Users\di_yu\workspace\lessCompiler\build.xml
css.concatenate:
 [echo] cons is done!
lessc:
 [echo] now in compression
 [java] Compiling...      C:\Users\di_yu\workspace\lessCompiler\src\main\webapp\cons\cons.less
css.concatenate:
 [echo] cons is done!
css.concatenate:
 [echo] cons is done!
lessc:
 [echo] now in compression
 [java] Compiling...    C:\Users\di_yu\workspace\lessCompiler\src\main\webapp\cons\cons.less
 rename:
 [echo] renaming...
 [rename] DEPRECATED - The rename task is deprecated.  Use move instead.
 [delete] Deleting:  C:\Users\di_yu\workspace\lessCompiler\src\main\webapp\css\cons.css.dsp.src
 [echo] rename done
 trasition:
 [echo]  in trasition 

BUILD FAILED
Target "precompile-templates" does not exist in the project "compile". 

Total time: 4 seconds

As you can see, it says "precompile-templates" target is not exist. However, I didn't call this task at all. I just delete it from my build.xml and there are no other targets related to it. How does the error come? PS: I use eclipse's run as ANT to run this build.xml.