Hy, I´m new in programming and sice today I was getting to run, test and submitted my programs. But now, every time I try to run then I have the same problem, for example:

~/workspace/pset1/cash/ $ cd ~/workspace/pset1/ ~/workspace/pset1/ $ make hello clang -fsanitize=signed-integer-overflow -fsanitize=undefined -ggdb3 -O0 -std=c11 -Wall -Werror -Wextra -Wno-sign-compare -Wshadow hello.c -lcrypt -lcs50 -lm -o hello

I´m using this example because I have already checked and sumbited it and now I can´t run it anymore. Would be possible to explain what this clang error means? Thanks!

1 Answer 1


It looks like you are trying to compile the program (make hello). To run the program the command is usually something like ./hello.

  • Thanks for the patiente it was exactly this!
    – lec_77
    Sep 22, 2018 at 20:26

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