@webdev13, try to modify this part of your build.xml:

Code:
<exec executable="ant">
    <arg value="-buildfile" />
    <arg value="${cordova.android.project}/build.xml" />
    <arg value="debug" />
</exec>
to this:

Code:
<exec executable="ant.bat">
    <arg value="-buildfile" />
    <arg value="${cordova.android.project}/build.xml" />
    <arg value="debug" />
</exec>
I was running into the same issue as you but when I ran this using the ant batch script, it worked. Give that a go,

Brice