title: hadoop failed to build from source
body: <p>I am trying to build hadoop-2.0.4-alpha from source..in ubuntu 13.04
  I have maven 3.0.5, protobuf(libprotoc 2.4.1), cmake(2.8.10.1)</p>
  
  <p>i get this</p>
  
  <pre><code> occured: stylesheet /home/hadoop/hadoop-2.0.4-alpha-src/hadoop-common-project/hadoop-common/${env.FINDBUGS_HOME}/src/xsl/default.xsl doesn't exist. -&gt; [Help 1]
  
  org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run (site) on project hadoop-common: An Ant BuildException has occured: stylesheet /home/hadoop/hadoop-2.0.4-alpha-src/hadoop-common-project/hadoop-common/${env.FINDBUGS_HOME}/src/xsl/default.xsl doesn't exist.
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:217)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:153)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:145)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84)
      at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183)
      at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161)
      at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:320)
      at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:156)
      at org.apache.maven.cli.MavenCli.execute(MavenCli.java:537)
      at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:196)
      at org.apache.maven.cli.MavenCli.main(MavenCli.java:141)
      at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
      at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290)
      at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230)
      at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409)
      at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352)
  Caused by: org.apache.maven.plugin.MojoExecutionException: An Ant BuildException has occured: stylesheet /home/hadoop/hadoop-2.0.4-alpha-src/hadoop-common-project/hadoop-common/${env.FINDBUGS_HOME}/src/xsl/default.xsl doesn't exist.
      at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:283)
      at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:101)
      at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:209)
      ... 19 more
  Caused by: /home/hadoop/hadoop-2.0.4-alpha-src/hadoop-common-project/hadoop-common/target/antrun/build-main.xml:44: stylesheet /home/hadoop/hadoop-2.0.4-alpha-src/hadoop-common-project/hadoop-common/${env.FINDBUGS_HOME}/src/xsl/default.xsl doesn't exist.
      at org.apache.tools.ant.taskdefs.XSLTProcess.handleError(XSLTProcess.java:1229)
      at org.apache.tools.ant.taskdefs.XSLTProcess.execute(XSLTProcess.java:380)
      at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
      at sun.reflect.GeneratedMethodAccessor54.invoke(Unknown Source)
      at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
      at java.lang.reflect.Method.invoke(Method.java:597)
      at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
      at org.apache.tools.ant.Task.perform(Task.java:348)
      at org.apache.tools.ant.Target.execute(Target.java:390)
      at org.apache.tools.ant.Target.performTasks(Target.java:411)
      at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1397)
      at org.apache.tools.ant.Project.executeTarget(Project.java:1366)
      at org.apache.maven.plugin.antrun.AntRunMojo.execute(AntRunMojo.java:270)
      ... 21 more
  [ERROR] 
  [ERROR] Re-run Maven using the -X switch to enable full debug logging.
  [ERROR] 
  [ERROR] For more information about the errors and possible solutions, please read the following articles:
  [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
  [ERROR] 
  [ERROR] After correcting the problems, you can resume the build with the command
  [ERROR]   mvn &lt;goals&gt; -rf :hadoop-common
  </code></pre>