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/Manager.java:38: error: ';' expected
    s1[1].replace("=","")
                         ^
./calc/Manager.java:42: error: ';' expected
    s1[1].replace("=","")
                         ^
2 errors
make: *** [all] Error 1