Checking core structure...
compile_project:10: no matches found: *.in
rm -f edt-core.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 `find . -name \*.java`)
./edt/menu/MainMenu.java:3: error: package ist.po.ui does not exist (cannot be used in the core project)
import ist.po.ui.Menu;
                ^
./edt/menu/MainMenu.java:4: error: package ist.po.ui does not exist (cannot be used in the core project)
import ist.po.ui.Command;
                ^
./edt/menu/EditMenu.java:3: error: package ist.po.ui does not exist (cannot be used in the core project)
import ist.po.ui.Menu;
                ^
./edt/menu/EditMenu.java:4: error: package ist.po.ui does not exist (cannot be used in the core project)
import ist.po.ui.Command;
                ^
4 errors
Makefile:5: recipe for target 'all' failed
make: *** [all] Error 1