E0200
Unknown type or trait name, or a qualified path such as sql.Query whose first segment is not a module bound by a plain use.
Machine-applicable fix: Replace the name with the single closest declared name, when one is close enough.
Example
This program fails with E0200.
fn greet(name: Strng) {}
Fixed
The same program, fixed.
fn greet(name: String) {}
Listed in the checker notes. oskac explain E0200 prints this entry offline.