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# Error code E0063

A struct's or struct-like enum variant's field was not provided.

Erroneous code example:

    struct Foo {
        x: i32,
        y: i32,
    }

    fn main() {
        let x = Foo { x: 0 }; // error: missing field: `y`
    }

Each field should be specified exactly once. Example:

    struct Foo {
        x: i32,
        y: i32,
    }

    fn main() {
        let x = Foo { x: 0, y: 0 }; // ok!
    }