Checking core structure...
compile_project:10: no matches found: *.in
rm -f calc-core.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 `find . -name \*.java`)
(cd src; jar cf ../calc-core.jar `find . -name \*.class -o -name \*.java`)
Checking manager interface structure...
rm -f calc-textui.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 -cp /usr/share/java/po-uilib.jar:/usr/share/java/calc-support.jar:../../calc-core/calc-core.jar `find . -name \*.java`)
./calc/textui/main/MenuBuilder.java:35: error: cannot find symbol
		menu.open();
		^
  symbol:   variable menu
  location: class MenuBuilder
1 error
make: *** [all] Error 1