Fatal Error: Unable to find package java.lang in classpath or bootclasspath

Question

Hi,
I am trying to build my project using ant tool, but it is erroring out as follows:
Buildfile: D:\My Software\eclipse\workspace\ShoppingCart\build.xmlprepare:compile:    [javac] Compiling 2 source files to D:\My Software\eclipse\workspace\ShoppingCart\build\WEB-INF\classes    [javac] Fatal Error: Unable to find package java.lang in classpath or bootclasspath BUILD FAILEDD:\My Software\eclipse\workspace\ShoppingCart\build.xml:46: Compile failed; see the compiler error output for details. Total time: 1 second  Please find the build.xml:
<project name="Shopping Cart" default="compile" basedir=".">      <property name="app.name" value="ShoppingCart" />     <property name="app.path" value="/${app.name}" />     <property name="app.version" value="0.1-dev" />     <property name="build.home" value="${basedir}/build" />     <property name="catalina.home" value="C:\Program Files\Apache Software Foundation\Tomcat 5.0" />     <property name="dist.home" value="${basedir}/bin" />     <!--<property name="docs.home" value="${basedir}/docs" /> -->     <property name="manager.url" value="http://localhost:8080/manager" />     <property name="src.home" value="${basedir}/src" />     <property name="web.home" value="${basedir}/web" />     <property name="lib.home" value="${basedir}/WEB-INF/lib" />      <target name="all" depends="clean,compile" description="Clean build and dist directories, then compile" />      <target name="clean" description="Delete old build and dist directories">          <delete dir="${build.home}" />          <delete dir="${dist.home}" />     </target>      <target name="prepare">          <!-- Create build directories as needed -->          <mkdir dir="${build.home}" />          <mkdir dir="${build.home}/WEB-INF" />          <mkdir dir="${build.home}/WEB-INF/classes" />           <!-- Copy static content of this web application -->          <copy todir="${build.home}/web">               <fileset dir="${web.home}" />          </copy>           <!-- Copy external dependencies as required -->          <!-- *** CUSTOMIZE HERE AS REQUIRED BY YOUR APPLICATION *** -->          <mkdir dir="${build.home}/WEB-INF/lib" />          <copy todir="${build.home}/WEB-INF/lib">               <fileset dir="${lib.home}" />          </copy>          <!-- Copy static files from external dependencies as needed -->          <!-- *** CUSTOMIZE HERE AS REQUIRED BY YOUR APPLICATION *** -->     </target>      <target name="compile" depends="prepare" description="Compile Java sources">          <!-- Compile Java classes as necessary -->          <mkdir dir="${build.home}/WEB-INF/classes" />          <javac srcdir="${src.home}" destdir="${build.home}/WEB-INF/classes" bootclasspath="${lib.home}" source="1.5"/>           <!-- Copy application resources -->          <copy todir="${build.home}/WEB-INF/classes">               <fileset dir="${src.home}" excludes="**/*.java" />          </copy>     </target>      <target name="dist" depends="compile" description="Create binary distribution">          <!-- Copy documentation subdirectories           <mkdir dir="${dist.home}/docs" />          <copy todir="${dist.home}/docs">               <fileset dir="${docs.home}" />          </copy> -->          <!-- Create application JAR file -->          <jar jarfile="${dist.home}/${app.name}-${app.version}.war" basedir="${build.home}" />          <!-- Copy additional files to ${dist.home} as necessary -->     </target> </project>  thnx,
Rakesh

Answer 1

Sounds like your JBuilder environment is screwed up; see what the classpath and bootclasspath are set to, and correct the error. (This is a question that belongs on a JBuilder website.)