Error code E0719
An associated type value was specified more than once.
Erroneous code example:
ⓘ
Item
in trait Iterator
cannot be specified multiple times for struct Foo
.
To fix this, create a new trait that is a combination of the desired traits and
specify the associated type with the new trait.
Corrected example:
For more information about associated types, see the book. For more information on associated type bounds, see RFC 2289.