error[E0223]: ambiguous associated type --> $DIR/qualified-path-params-2.rs:18:10 | LL | type A = <S as Tr>::A::f<u8>; | ^^^^^^^^^^^^^^^^^^^ | help: if there were a trait named `Example` with associated type `f` implemented for `<S as Tr>::A`, you could use the fully-qualified path | LL | type A = <<S as Tr>::A as Example>::f; | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ error: aborting due to previous error For more information about this error, try `rustc --explain E0223`.