A linker error is returned when the implementation for a function you're calling can't be found. This typicallly happens because you either didn't include the proper object file in your linking process or you didn't properly implement a function that you called. Did you include the proper implementation file in your project?
source_en .zip contains all files.Basically i don't know how to run it.if i compile each and every file iam gettin error in #include " .h" so i combined .h files whereever needed. tats y iam gettin error.iam using dev c++ ide.