Compiler Compiler kom4tsu (Programmer) (OP) 5 Aug 14 13:44 Hi everyone, I compile and execute my program and it says on the context menu. collect2: ld returned 1 exit status Anyone knows what it means??? Thank you, Kom4tsu RE: Compiler mikrom (Programmer) 5 Aug 14 15:31 It's error from the linker. Maybe before this error you will find an error like undefined reference to proc_name Search for the file where the proc_name is defined and include it into your compile+link command. RE: Compiler kom4tsu (Programmer) (OP) 5 Aug 14 16:09 C:\Users\Komatsu\AppData\Local\Temp\ccwDhUZn.o: In function `aurora': C:/Users/Komatsu/Desktop/Iniciação Científica/Programas Fortran/aurora3.f:10: undefined reference to `_gettim_' C:/Users/Komatsu/Desktop/Iniciação Científica/Programas Fortran/aurora3.f:125: undefined reference to `_gettim_' collect2: ld returned 1 exit status RE: Compiler mikrom (Programmer) 5 Aug 14 16:49 You need to find out where the subroutine or function gettim is. RE: Compiler mikrom (Programmer) 5 Aug 14 17:14 gettim is the subroutine from Intel Fortran compiler, which is not standard for other compilers: (http://coding.derkeiler.com/Archive/Fortran/comp.l...) If you don't use the Intel compiler you can try to write a wrapper for this function using standard fortran subroutine date_and_time as showed here: http://coding.derkeiler.com/Archive/Fortran/comp.l... RE: Compiler kom4tsu (Programmer) (OP) 5 Aug 14 18:09 I'm using Force 2.0 Thanks for your support mikrom =) RE: Compiler xwb (Programmer) 6 Aug 14 01:16 I thought the Force project died 10 years ago when the Brazilian guy who started it stopped maintaining it. Anyway, if I remember correctly, Force uses G77 or possibly G95/GFortran. RE: Compiler mikrom (Programmer) 6 Aug 14 04:02 Anyway, it seems that you try to compile a program which was originally developed for intel fortran compiler with another fortran compiler. To make this possible, you need to replace all non standard intel specific functions with standard fortran functions.