can't execute optional ant tasks
--------------------------------

                 Key: MANTRUN-97
                 URL: http://jira.codehaus.org/browse/MANTRUN-97
             Project: Maven 2.x Antrun Plugin
          Issue Type: Bug
    Affects Versions: 1.2
            Reporter: Haiko Emmel
         Attachments: pom.xml

try to run an optional ant task produce following error message:

Scanning for projects...
project-execute
[#generate-resources]
[antrun:run]
Executing tasks
     [echo] Hello World
[ERROR]The following mojo encountered an error while executing:
[ERROR]Group-Id: org.apache.maven.plugins
[ERROR]Artifact-Id: maven-antrun-plugin
[ERROR]Version: 1.2
[ERROR]Mojo: run
[ERROR]brought in via: POM
[ERROR]While building project:
[ERROR]Group-Id: haiko
[ERROR]Artifact-Id: test
[ERROR]Version: 1.0-SNAPSHOT
[ERROR]From file: C:\Dokumente und Einstellungen\hemmel\Eigene 
Dateien\Projects\test\pom.xml
[ERROR]Reason: An Ant BuildException has occured: Could not create task or type 
of type: propertyfile.
[ERROR]Ant could not find the task or a class this task relies upon.
[ERROR]This is common and has a number of causes; the usual 
[ERROR]solutions are to read the manual pages then download and
[ERROR]install needed JAR files, or fix the build file: 
[ERROR] - You have misspelt 'propertyfile'.
[ERROR]   Fix: check your spelling.
[ERROR] - The task needs an external JAR file to execute
[ERROR]     and this is not found at the right place in the classpath.
[ERROR]   Fix: check the documentation for dependencies.
[ERROR]   Fix: declare the task.
[ERROR] - The task is an Ant optional task and the JAR file and/or libraries
[ERROR]     implementing the functionality were not found at the time you
[ERROR]     yourself built your installation of Ant from the Ant sources.
[ERROR]   Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the
[ERROR]     task and make sure it contains more than merely a 
META-INF/MANIFEST.MF.
[ERROR]     If all it contains is the manifest, then rebuild Ant with the needed
[ERROR]     libraries present in ${ant.home}/lib/optional/ , or alternatively,
[ERROR]     download a pre-built release version from apache.org
[ERROR] - The build file was written for a later version of Ant
[ERROR]   Fix: upgrade to at least the latest release version of Ant
[ERROR] - The task is not an Ant core or optional task 
[ERROR]     and needs to be declared using <taskdef>.
[ERROR] - You are attempting to use a task defined using 
[ERROR]    <presetdef> or <macrodef> but have spelt wrong or not 
[ERROR]   defined it at the point of use
[ERROR]Remember that for JAR files to be visible to Ant tasks implemented
[ERROR]in ANT_HOME/lib, the files must be in the same directory or on the
[ERROR]classpath
[ERROR]Please neither file bug reports on this problem, nor email the
[ERROR]Ant mailing lists, until all of these causes have been explored,
[ERROR]as this is not an Ant bug.
------------------------------------------------------------------------
For more information, run with the -e flag
------------------------------------------------------------------------
BUILD FAILED
------------------------------------------------------------------------
Total time: 1 second
Finished at: Wed Aug 20 13:07:42 CEST 2008
Final Memory: 33M/78M
------------------------------------------------------------------------


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