Unable to build on Ubuntu after ant upgrade from 1.7.0 to 1.8.0(latest)

[Philip Tham <pt...@rim.com>]

Hi There

 

I am currently blocked with not being able to build after upgrading ant
to the latest version.  The errors I am getting are below.

 

If anyone is familiar with this issue and error, I would be very
grateful.

 

Thanks

 

Philip Tham

 

BUILD FAILED

/home/test/Automation/build.xml:2: The

following error occurred while executing this line:

jar:file:/usr/share/ant/lib/ant.jar!/org/apache/tools/ant/antlib.xml:37:
Could

not create task or type of type: componentdef.

 

Ant could not find the task or a class this task relies upon.

 

This is common and has a number of causes; the usual 

solutions are to read the manual pages then download and

install needed JAR files, or fix the build file: 

 - You have misspelt 'componentdef'.

   Fix: check your spelling.

 - The task needs an external JAR file to execute

     and this is not found at the right place in the classpath.

   Fix: check the documentation for dependencies.

   Fix: declare the task.

 - The task is an Ant optional task and the JAR file and/or libraries

     implementing the functionality were not found at the time you

     yourself built your installation of Ant from the Ant sources.

   Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the

     task and make sure it contains more than merely a
META-INF/MANIFEST.MF.

     If all it contains is the manifest, then rebuild Ant with the
needed

     libraries present in ${ant.home}/lib/optional/ , or alternatively,

     download a pre-built release version from apache.org

 - The build file was written for a later version of Ant

   Fix: upgrade to at least the latest release version of Ant

 - The task is not an Ant core or optional task 

     and needs to be declared using <taskdef>.

 - You are attempting to use a task defined using 

    <presetdef> or <macrodef> but have spelt wrong or not 

   defined it at the point of use

 

Remember that for JAR files to be visible to Ant tasks implemented

in ANT_HOME/lib, the files must be in the same directory or on the

classpath

 


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Re: Unable to build on Ubuntu after ant upgrade from 1.7.0 to 1.8.0(latest)

[Stefan Bodewig <bo...@apache.org>]

On 2010-07-29, Philip Tham wrote:

> I am currently blocked with not being able to build after upgrading ant
> to the latest version.  The errors I am getting are below.

How did you "upgrade"?

Please note that the only distributions supported by the Ant team are
those you can download from ant.apache.org's download pages.  We don't
create deb or rpm packages ourselves and usually don't even know
anything about the distribution specific changes those packages contain.

1.8.0 is not the latest version, BTW, 1.8.1 is.

> following error occurred while executing this line:

> jar:file:/usr/share/ant/lib/ant.jar!/org/apache/tools/ant/antlib.xml:37:
> Could

> not create task or type of type: componentdef.

Sounds as if you had more than version of Ant on your CLASSPATH and the
wrong (too old) one was picked up first and now tries to load the antlib
descriptor of Ant 1.8.1.

Make sure your CLASSPATH is clean and you really use the ant wrapper
script provided by the Ant team and not one modified by any other
distributor.

Stefan

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