Fixed our own problem - this may help others: We needed Tomcat 6 jars to be in $ANT_HOME/lib
Pretty obvious with hindsight, but hindsight is a wonderful thing... Royston -----Original Message----- From: Royston Sellman [mailto:royston.sell...@googlemail.com] Sent: 20 December 2011 18:19 To: common-user@hadoop.apache.org Subject: Release 1.0.0 RC3 - Ant Build Fails with JSP-Compile Error Hi, We have just checked out the latest version of Hadoop source from http://svn.apache.org/repos/asf/hadoop/common/tags/release-1.0.0-rc3 and we have attempted to build it using the ant build.xml script. However we are getting errors relating to the jsp-compile command. We are getting the following error when we run "ant" inside our $HADOOP_INSTALL directory. BUILD FAILED /opt/hadoop/release-1.0.0-rc3/build.xml:527: jsp-compile doesn't support the "webxml" attribute Please can you suggest what might be the cause and/or how we can fix this issue, to build Hadoop successfully. Thanks, Royston