In some cases the ant task fails to load a configuration
file. This never happens on a first task instance but will
happen in subsequent calls. The location of the
configuration file is always the same and no chages are
made to it between calls.
The build fails with
file:C:/gunner/gunner/build/build-single.xml:94: Unable to
create a Checker: unable to read:
Using the latest version (3.1).