In the Racket version 7.0 on Windows, a contract violation error in an executable program will trigger a very confusing error message. I think this is best illustrated by an example. Consider the file:
#lang racket (require racket/contract) (define/contract (foo n) (-> integer? any/c) (printf "foo: ~a~%" n)) (module+ main (foo "hello")) When run from the command line, this program will report a contract violation, correctly indicating the problem: $ racket c.rkt foo: contract violation expected: integer? given: "hello" in: the 1st argument of (-> integer? any/c) contract from: (function foo) blaming: e:\Alex\t\c.rkt (assuming the contract is correct) at: e:\Alex\t\c.rkt:4.18 If I compile and make a distribution from this program using `raco exe` followed by `raco dist`, than try to run the resulting executable I get: $ raco exe c.rkt $ raco dist c-dist c.exe $ ./c-dist/c.exe build-path: contract violation expected: (or/c path-for-some-system? path-string? 'up 'same) given: #f argument position: 1st other arguments...: "pkgs" Is there a way to improve this error message? I sort of understand why the program not be able to report the full contract and line number, but it should at least say something along the lines of "a contract violation has occurred, no further detail available", instead of reporting the `build-path` contract violation. Thanks, Alex. -- You received this message because you are subscribed to the Google Groups "Racket Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to racket-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.