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# Error code E0560

An unknown field was specified into a structure.

Erroneous code example:

    #![allow(unused)]
    fn main() {
    struct Simba {
        mother: u32,
    }

    let s = Simba { mother: 1, father: 0 };
    // error: structure `Simba` has no field named `father`
    }

Verify you didn’t misspell the field’s name or that the field exists. Example:

    #![allow(unused)]
    fn main() {
    struct Simba {
        mother: u32,
        father: u32,
    }

    let s = Simba { mother: 1, father: 0 }; // ok!
    }