Error codes · Effects
PW0406
set_read_per_key
The program must hold to this: a page's or a command's calls do not grow with its data: a set read is on a source that batches.
Reading the diagnostic
pw check prints the code in brackets, [PW0406], 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.