Fixing a CL21 error message in an unrelated library after a quicklisp update (it's about cache)

from blog Lisp journey, | ↗ original
I just updated my Quicklisp dist and suddenly couldn’t load some libraries any more. I got an error related to cl21 looking like the one below (I didn’t note the exact message sorry), even though the library was unrelate to cl21 (it was about osicat and cffi.grovel): couldn’t find adjustable-vectors from CL21.core.arrays If you skip through the...