about simpleServlet sample

hello,
i want to ask again
i have compile the simpleServlet sample
and have an error
the error is

****************************
Win NT/2000/XP build script

Buildfile: build.xml

tomcat.shutdown

BUILD FAILED
file:C:/ozone/samples/simpleServlet/build.xml:92: the directory does not 
exist

total time: 0 seconds
****************************

i have set the catalina_home, java_home, and the ozone_home
i also have started up the tomcat
i use tomcat version 4

please help me
thanks



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