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# Error code E0325

An associated type was implemented when another trait item was expected.

Erroneous code example:

    #![allow(unused)]
    fn main() {
    struct Bar;

    trait Foo {
        const N : u32;
    }

    impl Foo for Bar {
        type N = u32;
        // error: item `N` is an associated type, which doesn't match its
        //        trait `<Bar as Foo>`
    }
    }

Please verify that the associated type name wasn’t misspelled and your implementation corresponds to the trait definition. Example:

    #![allow(unused)]
    fn main() {
    struct Bar;

    trait Foo {
        type N;
    }

    impl Foo for Bar {
        type N = u32; // ok!
    }
    }

Or:

    #![allow(unused)]
    fn main() {
    struct Bar;

    trait Foo {
        const N : u32;
    }

    impl Foo for Bar {
        const N : u32 = 0; // ok!
    }
    }