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From "Dharmesh Vyas" <>
Subject [HELP] How to use ant-contrib inside an ant plugin?
Date Fri, 24 Nov 2006 13:53:06 GMT
Hello Group,

I am a new member of the group. I am trying to use ant-contrib plugin with
ant. I have been facing an issue where in it shows that "Could not create
task or type of type: for."

The full error that I get is:

Could not create task or t
ype of type: for.

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 'for'.
   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
 - 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

Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.
I have the ant 1.6.3 and ant-contrib 1.0b3-bin on my machine. I have copied
jar file of ant-contrib in to ant/lib and the initial name of jar file was '
ant-contrib-1.0b3', I was not sure if this name has to be changed to
ant-contrib or antcontrib. But to give it a try, I have tried out that also
but din't work for me.

This is how I am using the "For" task in my build.xml file

 <target name="useoffor">
  <for param="i" begin="0" step="1" end="5">
         <echo>i is @{i}</echo>

To use "for" task do i need to define any thing else also in my
build.xmlfile ? Please let me know where am I going wrong.

Thanks a lot in Advance,
- Dharmesh Vyas

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