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`)
./calc/Referencia.java:13: error: invalid method declaration; return type required
  public getIdLinha(){
         ^
./calc/Referencia.java:17: error: invalid method declaration; return type required
  public getIdColuna(){
         ^
./calc/Funcao.java:7: error: ';' expected
 public Funcao()
                ^
./calc/Folha.java:21: error: 'try' without 'catch', 'finally' or resource declarations
    try{
    ^
4 errors
make: *** [all] Error 1