Error codes · Declarations and their clauses
PW0343
last_known_good_is_public
The program must hold to this: a last-known-good fallback serves only public data.
The decisions behind it
Reading the diagnostic
pw check prints the code in brackets, [PW0343], with the sentence above and the place in your program. Errors and diagnostics explains how to read one, and every code is listed with its rule.