Rust errors / Everything else
Rust compiler error · checked with rustc 1.99.0
Rust error E0063: missing field `y` in initializer of `Foo`
What it meansA struct's or struct-like enum variant's field was not provided.
What rustc prints
error[E0063]: missing field `y` in initializer of `Foo`
--> main.rs:7:13
|
7 | let x = Foo { x: 0 }; // error: missing field: `y`
| ^^^ missing `y`Real output of rustc 1.99.0 compiling the official example below (2021 edition). Your names and line numbers will differ; the first line is the part to match.
E0063Everything else
Activein rustc 1.99.0
7related errors linked below
The compiler team's explanation
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!
}From rustc --explain E0063 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.
Related errors
- E0061this function takes N arguments but M were supplied
- E0412cannot find type in this scope
- E0515cannot return reference to local variable
- E0728await is only allowed inside async functions and blocks
- E0062field `x` specified more than once
- E0067invalid left-hand side of assignment
- E0070invalid left-hand side of assignment
Up next
Often hit nextE0061: this function takes N arguments but M were suppliedA related error from the same family.Read it next →Did this answer your question?