Cannot compile using Ant against any project in JBuilder

Abstract: Cannot compile using Ant against any project in JBuilder

Issue:

Error when compiling against Ant in any Project:

Unable to instantiate specified input handler class borland.jbuilder.build.antinput.AntInputHandler: java.lang.ClassNotFoundException

Solution:

Revert to default user settings and do not import settings from previous version.

To do this, delete/move the following directories:

<user home>/.jbuilder2006

<user home>/.primetime2006

Once the settings are removed, try relaunching JBuilder. When the import settings dialog appears, choose 'Cancel'.