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/ShowContent.java:8: error: cannot find symbol
public class ShowContent implements VisitorCore{
                                    ^
  symbol: class VisitorCore
./edt/Section.java:416: error: cannot find symbol
	public String accept(VisitorCore vC){
	                     ^
  symbol:   class VisitorCore
  location: class Section
./edt/Element.java:40: error: cannot find symbol
	public abstract String accept(VisitorCore vC);
	                              ^
  symbol:   class VisitorCore
  location: class Element
./edt/Paragraph.java:75: error: cannot find symbol
	public String accept(VisitorCore vC){
	                     ^
  symbol:   class VisitorCore
  location: class Paragraph
./edt/Document.java:121: error: cannot find symbol
	public String accept(VisitorCore vC){
	                     ^
  symbol:   class VisitorCore
  location: class Document
./edt/ListSection.java:7: error: cannot find symbol
public class ListSection implements VisitorCore{
                                    ^
  symbol: class VisitorCore
./edt/ShowContent.java:13: error: method does not override or implement a method from a supertype
	@Override
	^
./edt/ShowContent.java:31: error: method does not override or implement a method from a supertype
	@Override
	^
./edt/ListSection.java:12: error: method does not override or implement a method from a supertype
	@Override
	^
./edt/ListSection.java:20: error: cannot find symbol
			result.add(id,title);
			      ^
  symbol:   method add(String,String)
  location: variable result of type String[]
10 errors
Makefile:5: recipe for target 'all' failed
make: *** [all] Error 1