Warning: Computing just-done stamp in plan NIL for action

[Faré]

On Wed, Oct 18, 2017 at 9:25 AM, Chream iz <chream33 at gmail.com> wrote:
> Hi, I am also getting this error when trying to run (asdf:test-system ....).
> It is also not finding the test-files but that might be an but in the prove
> package?
>
>
>   :defsystem-depends-on (:prove-asdf)
>   :perform (test-op :after (op c)
>                     (funcall (intern #.(string :run-test-system)
> :prove-asdf) c)
>                     (asdf:clear-system c)))
>
There is your culprit: clear-system should NEVER be called within
perform. It's removing the rug under ASDF as it's running -- very BAD,
especially if there are many build phases. Unhappily, prove and other
prove-based system skeletons (e.g. from caveman) have made this
pattern popular. I sent patches to prove & al. at least six months
ago, and wrote about this anti-pattern in my "best_practices"
document, but I suppose the message didn't go around yet. Maybe I
should make it an error for clear-system to be called from within an
active asdf-session?

Stas, if you also use clear-system this way, you also lose for that reason.

—♯ƒ • François-René ÐVB Rideau •Reflection&Cybernethics• http://fare.tunes.org
Young man, in mathematics you don't understand things,
you just get used to them. — John von Neumann (1903-1957)