Netbeans 5.5 'ant junit' Not Working from Command Line

BUILD FAILED

[project path]/nbproject/build-impl.xml:459: The following error occurred while executing this line:

[project path]/nbproject/build-impl.xml:140: Could not create task or type of type: junit.



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 'junit'.

   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 .

 - You are attempting to use a task defined using 

     or  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



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.