Checking core structure...
compile_project:10: no matches found: *.in
rm -f poof-core.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 `find . -name \*.java`)
(cd src; jar cf ../poof-core.jar `find . -name \*.class -o -name \*.java`)
Checking manager interface structure...
rm -f poof-textui.jar `find . -name \*.class`
(cd src; javac -encoding UTF-8 -cp /usr/share/java/po-uilib.jar:/usr/share/java/poof-support.jar:../../poof-core/poof-core.jar `find . -name \*.java`)
./poof/textui/user/ListAllUsers.java:27: error: cannot find symbol
	    User[] users = receiver.listUsers();
	                   ^
  symbol:   variable receiver
  location: class ListAllUsers
./poof/textui/user/ListAllUsers.java:31: error: cannot find symbol
		receiver.setCurrentDirectory(u.getMainDirectory());
		^
  symbol:   variable receiver
  location: class ListAllUsers
./poof/textui/user/ListAllUsers.java:32: error: cannot find symbol
		String path = receiver.showPath();
		              ^
  symbol:   variable receiver
  location: class ListAllUsers
./poof/textui/main/Login.java:32: error: cannot find symbol
				if(receiver.getFileSystem().getUsers().containsKey(username)){
				   ^
  symbol:   variable receiver
  location: class Login
./poof/textui/main/Login.java:33: error: cannot find symbol
					receiver.login(username);
					^
  symbol:   variable receiver
  location: class Login
./poof/textui/main/Login.java:34: error: cannot find symbol
					receiver.getFileSystem().getUsers().get(username).setMainDirectory(_receiver._currentDirectory);
					                                                                            ^
  symbol:   variable _currentDirectory
  location: variable _receiver of type Receiver
  where Receiver is a type-variable:
    Receiver extends Object declared in class Command
./poof/textui/main/Login.java:34: error: cannot find symbol
					receiver.getFileSystem().getUsers().get(username).setMainDirectory(_receiver._currentDirectory);
					^
  symbol:   variable receiver
  location: class Login
./poof/textui/main/Open.java:29: error: cannot find symbol
	    if(IO.readBoolean(Message.saveBeforeExit()) && receiver.isModified()) {
	                                                   ^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:31: error: cannot find symbol
		    receiver.saveFileSystem();
		    ^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:37: error: cannot find symbol
		    receiver.getFileSystem().setAssociatedFile(filename);
		    ^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:38: error: cannot find symbol
		    receiver.saveFileSystem();
		    ^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:45: error: cannot find symbol
	    User u = receiver.getCurrentUser();
	             ^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:49: error: cannot find symbol
		receiver.openFileSystem(file);
		^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/Open.java:50: error: cannot find symbol
		receiver.getFileSystem().setCurrentUser(u);
		^
  symbol:   variable receiver
  location: class Open
./poof/textui/main/New.java:27: error: cannot find symbol
		receiver.createFileSystem();
		^
  symbol:   variable receiver
  location: class New
./poof/textui/main/Save.java:27: error: cannot find symbol
	    if(receiver.isModified()) {
	       ^
  symbol:   variable receiver
  location: class Save
./poof/textui/main/Save.java:29: error: cannot find symbol
		    receiver.saveFileSystem();
		    ^
  symbol:   variable receiver
  location: class Save
./poof/textui/main/Save.java:35: error: cannot find symbol
		    receiver.getFileSystem().setAssociatedFile(filename);
		    ^
  symbol:   variable receiver
  location: class Save
./poof/textui/main/Save.java:36: error: cannot find symbol
		    receiver.saveFileSystem();
		    ^
  symbol:   variable receiver
  location: class Save
./poof/textui/shell/ShowWorkingDirectory.java:27: error: cannot find symbol
		String workingdirectory = receiver.ShowPath();
		                          ^
  symbol:   variable receiver
  location: class ShowWorkingDirectory
./poof/textui/shell/ListAllEntries.java:27: error: cannot find symbol
	    Object[] objs = receiver.list();
	                    ^
  symbol:   variable receiver
  location: class ListAllEntries
21 errors
make: *** [all] Error 1