Error codes · Caches, keys and invalidation
PW5110
dependency_stated_twice
The program must hold to this: a materialization that derives its value states what it depends on by reading it, and nowhere else.
The decisions behind it
Reading the diagnostic
pw check prints the code in brackets, [PW5110], 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.