Звучит смешно, но ситуация такова:
Мы только начали изучать JAVA и получили такое задание
build.xml в указанных строках исправить ошибки эти 3 строки выделены красным . Интересуют только они, но на всякий случай весь файл
<!-- Buildfile -->
<project name="jake2" default="" basedir=".">

<taskdef name="proguard" classname="proguard.ant.ProGuardTask">
<classpath>
<pathelement location="lib/proguard/proguard.jar"/>
</classpath>
</taskdef>


<taskdef name="izpack" classpath="lib/izpack/standalone-compiler.jar"
classname="com.izforge.izpack.ant.IzPackTask"/>

<!-- properties -->
<property name="version" value="0.9.4"/>
<property name="src" location="src"/>
<property name="patch" location="patch"/>
<property name="test" location="test"/>
<property name="build" location="build"/>
<property name="dist" location="dist"/>

<!-- different classpaths -->
<path id="build.class.path">
<pathelement location="lib/jogl/jogl.jar"/>
<pathelement location="lib/joal/linux/joal.jar"/>
<pathelement location="lib/lwjgl/lwjgl.jar"/>
<pathelement location="lib/lwjgl/lwjgl_util.jar"/>
</path>

<!-- usage -->
<target name="usage">
<echo message="command line arguments for build.sh or build.bat"/>
<echo message=""/>
<echo message="installer build installer"/>
<echo message="bindist build .tar.gz and .zip binary distribution"/>
<echo message="srcdist build only source distribution"/>
<echo message="all build everything"/>
<echo message="clean delete classfiles keep distribution files"/>
<echo message="distclean delete all generated files"/>
<echo message="jar build only dist/lib/jake2.jar"/>
<echo message=""/>
</target>

<!-- initialize directories -->
<target name="init">
<mkdir dir="${build}"/>
<mkdir dir="${dist}/lib"/>
</target>

<!-- compile -->
<target name="compile" depends="">
<javac destdir="${build}" optimize="on" debug="off" source="1.4">
<src path="${src}"/>
<include name="jake2/**"/>
<classpath refid="build.class.path"/>
</javac>
</target>

<!-- copy resources -->
<target name="copyres" depends="init">
<copy todir="${build}">
<fileset dir="resources">
<include name="**/*"/>
</fileset>
</copy>
</target>

<!-- copy files -->
<target name="copy">
<copy todir="${dist}/lib">
<fileset dir="lib/jogl">
<include name="*.jar"/>
</fileset>
<fileset dir="lib/lwjgl">
<include name="*.jar"/>
</fileset>
</copy>
<copy todir="${dist}/lib/linux">
<fileset dir="lib/jogl/linux">
<include name="*"/>
</fileset>
<fileset dir="lib/joal/linux">
<include name="*"/>
</fileset>
</copy>
<copy todir="${dist}/lib/linux/lwjgl">
<fileset dir="lib/lwjgl/linux">
<include name="*"/>
</fileset>
</copy>
<copy todir="${dist}/lib/windows">
<fileset dir="lib/jogl/windows">
<include name="*"/>
</fileset>
<fileset dir="lib/joal/windows">
<include name="*"/>
</fileset>
<fileset dir="lib/lwjgl/windows">
<include name="*"/>
</fileset>
</copy>
<copy todir="${dist}/lib/osx">
<fileset dir="lib/jogl/osx">
<include name="*"/>
</fileset>
<fileset dir="lib/joal/osx">
<include name="*"/>
</fileset>
<fileset dir="lib/lwjgl/osx">
<include name="*"/>
</fileset>
</copy>
<copy todir="${dist}">
<fileset dir="scripts">
<include name="Jake2*"/>
</fileset>
<fileset dir=".">
<include name="ChangeLog"/>
<include name="LICENSE"/>
<include name="README"/>
<include name="readme.id"/>
</fileset>
</copy>
<chmod perm="755">
<fileset dir="${dist}">
<include name="*.sh"/>
</fileset>
</chmod>
<fixcrlf srcdir="${dist}"
eol="crlf"
includes="*.bat"
/>
<fixcrlf srcdir="${dist}"
eol="lf"
includes="*.sh"
/>
</target>

<!-- jar -->
<target name="jar" depends="compile,copyres">
<jar destfile="jake2.jar" basedir="${build}">
<include name="jake2/**"/>
<include name="*.png"/>
<include name="mirrors"/>
</jar>
<proguard printseeds="on" printusage="off" outjar="${dist}/lib/jake2.jar"
defaultpackage="" overloadaggressively="off" printmapping="jake2.map">
<injar name="jake2.jar"/>
<libraryjar name="lib/jogl/jogl.jar"/>
<libraryjar name="lib/joal/linux/joal.jar"/>
<libraryjar name="${java.home}/lib/rt.jar"/>
<keep access="public" name="jake2.Jake2">
<method name="main(java.lang.String[])"/>
</keep>
</proguard>
</target>

<!-- everything -->
<target name="all" depends="">
</target>

<!-- dist -->
<target name="dist" depends="jar,copy">
</target>

<!-- binary distribution -->
<target name="bindist" depends="dist">
<tar destfile="jake2-${version}.tar.gz" compression="gzip">
<tarfileset dir="${dist}" prefix="Jake2" mode="755">
<include name="*.sh"/>
</tarfileset>
<tarfileset dir="${dist}" prefix="Jake2">
<include name="**"/>
<exclude name="*.sh"/>
</tarfileset>
</tar>
<zip destfile="jake2-${version}.zip">
<zipfileset dir="${dist}" prefix="Jake2">
<include name="**"/>
</zipfileset>
</zip>
</target>

<!-- source distribution -->
<target name="srcdist">
<tar destfile="jake2src-${version}.tar.gz" compression="gzip">
<tarfileset dir="." prefix="Jake2" mode="755">
<include name="scripts/*.*"/>
<include name="build.sh"/>
</tarfileset>
<tarfileset dir="." prefix="Jake2">
<include name="src/jake2/**"/>
<include name="patch/**"/>
<include name="resources/**"/>
<include name="lib/**"/>
<include name="build.xml"/>
<include name="build.bat"/>
<include name="ChangeLog"/>
<include name="LICENSE"/>
<include name="README*"/>
<include name="install.xml"/>
<include name="readme.id"/>
</tarfileset>
</tar>
<zip destfile="jake2src-${version}.zip">
<zipfileset dir="." prefix="Jake2">
<include name="src/jake2/**"/>
<include name="patch/**"/>
<include name="resources/**"/>
<include name="scripts/*.*"/>
<include name="lib/**"/>
<include name="build.xml"/>
<include name="build.sh"/>
<include name="build.bat"/>
<include name="ChangeLog"/>
<include name="LICENSE"/>
<include name="README*"/>
<include name="install.xml"/>
<include name="readme.id"/>
</zipfileset>
</zip>
</target>

<!-- standalone installer -->
<target name="installer" depends="dist">
<izpack input="${basedir}/install.xml"
output="${basedir}/Jake2-${version}-install.jar"
installerType="standard"
basedir="${dist}"
izPackDir="${basedir}/lib/izpack"/>
</target>

<!-- webstart -->
<target name="webstart" depends="dist,patch">
<mkdir dir="webstart/lib"/>
<copy todir="webstart/lib">
<fileset dir="${dist}/lib">
<include name="**/*.jar"/>
<exclude name="jake2.jar"/>
<exclude name="jogl.jar"/>
</fileset>
<fileset dir=".">
<include name="patch.jar"/>
<include name="jake2.jar"/>
</fileset>
</copy>

<jar destfile="webstart/lib/linux/joal-native.jar" basedir="${dist}/lib/linux">
<include name="libjoal.so"/>
</jar>
<jar destfile="webstart/lib/linux/lwjgl-native.jar" basedir="${dist}/lib/linux/lwjgl">
<include name="*.so"/>
</jar>
<jar destfile="webstart/lib/linux/openal.jar" basedir="${dist}/lib/linux">
<include name="libopenal.so"/>
</jar>
<jar destfile="webstart/lib/osx/joal-native.jar" basedir="${dist}/lib/osx">
<include name="libjoal.jnilib"/>
</jar>
<jar destfile="webstart/lib/osx/lwjgl-native.jar" basedir="${dist}/lib/osx">
<include name="liblwjgl.jnilib"/>
<include name="openal.dylib"/>
</jar>
<jar destfile="webstart/lib/windows/joal-native.jar" basedir="${dist}/lib/windows">
<include name="joal.dll"/>
<include name="OpenAL32.dll"/>
</jar>
<jar destfile="webstart/lib/windows/lwjgl-native.jar" basedir="${dist}/lib/windows">
<include name="lwjgl.dll"/>
<include name="lwjglaudio.dll"/>
</jar>
<signjar keystore="${user.home}/bytonic" alias="bytonic" storepass="${bytonic.pass}">
<fileset dir="webstart/lib">
<include name="**/*.jar"/>
</fileset>
</signjar>
</target>

<!-- clean -->
<target name="clean">
<delete dir="${build}"/>
</target>

<!-- distclean -->
<target name="distclean" depends="clean">
<delete dir="${dist}"/>
<delete dir="webstart/lib"/>
<delete>
<fileset dir=".">
<include name="*.tar.gz"/>
<include name="*.zip"/>
<include name="*.map"/>
<include name="*.jar"/>
</fileset>
</delete>
</target>

<!-- patch -->
<target name="patch">
<javac destdir="${build}" optimize="on" debug="off" source="1.4">
<src path="${patch}"/>
<include name="**"/>
<classpath refid="build.class.path"/>
</javac>
<jar destfile="patch.jar" basedir="${build}">
<include name="net/**"/>
</jar>
</target>
</project>



Моих сегодняшних знаний не хватит даже на то, чтобы понять для чего этот файл вообще нужен.
Посмотрев на примеры в Интернете и на сайте, думаю они должны так выглядеть
1. <project name="jake2" default="usage" basedir=".">
2. <target name="compile" depends="init">
3. <target name="all" depends="jar, copy">
Кто разбирается подскажите так это или нет, речь идет о зачете

Большое спасибо Jozic Вам за помощь!!!!!!!!
Это было то, что надо!!!!
И 2 из 3 я угадала