; instantiate-linklet: mismatch; ; reference to a variable that is not exported; ; possibly, bytecode file needs re-compile because dependencies changed ; name: idX475.1 ; exporting instance: "/home/hazel/src/racket/extra-pkgs/data-frame/private/df.rkt" ; importing instance: "/home/hazel/src/racket/extra-pkgs/data-frame/private/statistics.rkt" what weird thing did I break? this is after raco pkg update --clone data-frame

Is that from the raco pkg update command, or from something subsequently?

If it’s from some subsequent racket foo.rkt then running raco make foo.rkt will likely fix it

so there’s no string-index-of in the standard library right.. ? e.g (index-of "abc" "c") -> 3

The module srfi/13 has a function string-index

I agree that it would be nice to have this properly in racket/string itself