如何为ant安装org.apache.tools.ant.taskdefs.optional.Rpm

Question

I'm trying to launch:

ant rpm

command where my build.xml at line #126 looks like:

<rpm specFile="whatever.spec" topDir="${basedir}/rpm" command="-bb" failOnError="true" />

I'm getting the error:

build.xml:126: Problem: failed to create task or type rpm
Cause: the class org.apache.tools.ant.taskdefs.optional.Rpm was not found.
        This looks like one of Ant's optional components.
Action: Check that the appropriate optional JAR exists in
        -/usr/share/ant/lib
        -/export/home/myuser/.ant/lib
        -a directory added on the command line with the -lib argument

I downloaded ant-nodeps-1.7.1.jar which contains:

jar tvf ant-nodeps-1.7.1.jar | grep Rpm
  7171 Fri Jun 27 05:03:48 CEST 2008 org/apache/tools/ant/taskdefs/optional/Rpm.class

I placed this jar file to directory: /usr/share/ant/lib

ant-1.7.0.jar -> ../../java/ant-1.7.0.jar
ant.jar -> ../../java/ant.jar
ant-launcher-1.7.0.jar -> ../../java/ant-launcher-1.7.0.jar
ant-launcher.jar -> ../../java/ant-launcher.jar
ant-nodeps-1.7.1.jar

but still getting that build error. I tried also with commands:

ant -lib /usr/share/ant/lib rpm
ant -lib /usr/share/ant/lib/ant-nodeps-1.7.1.jar rpm
ant -lib ant-nodeps-1.7.1.jar rpm

whithout succes, getting the same error. What is missing, what I need to do ?

Thanks !

Answer 1

cd into your ANT_HOME directory and run ant -f fetch.xml -Ddest=system This will download the optional ant dependencies you need to ant rpm .

This is from the ant install guide .