Hi Doug: I tried in /proj/adaptive/www/course/f99/hw/1/scratch-for-doug setenv CLASSPATH=$CLASSPATH\:$JIKESPATH but I still get: Demeter/Java version 0.7.3 Copyright (c) 1998 Northeastern University Reading project file program.prj... Running the compiler... gen/Example.java:0:0:0:0: Warning: The file "/usr/java1.2/jre/lib/rt.jar=" is not a valid directory. gen/Example.java:0:0:0:0: Error: Could not find package named: gen/classes/java/lang, gen/java/lang, /proj/demsys/demjava/cur/rt.jar(java/lang), /proj/demsys/demjava/cur/aplib.jar(java/lang), /proj/demsys/demjava/cur/demjava.jar(java/lang), /proj/demsys/demjava/cur/apstudio.jar(java/lang), /proj/demsys/demjava/swingall.jar(java/lang), ./java/lang, /proj/demsys/demjava/alpha/dj.jar(java/lang), /proj/demsys/demjava/alpha/aplib.jar(java/lang), /proj/demsys/demjava/alpha/rt.jar(java/lang), /proj/demsys/demjava/jgl.jar(java/lang) or /usr/java1.2/jre/lib/rt.jar=(java/lang) Running the test... Exception in thread "main" java.lang.NoClassDefFoundError: Main Why? -- Karl