Rust error E0609: no field on type

What it meansYou accessed a field that does not exist on that type. Often the value is wrapped (Option, Result, Box, Vec) and the field belongs to the inner type.

What rustc prints

error[E0609]: no field `foo` on type `StructWithFields`
 --> main.rs:8:18
  |
8 | println!("{}", s.foo); // error: no field `foo` on type `StructWithFields`
  |                  ^^^ unknown field
  |
  = note: available field is: `x`

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.

Why it happens

opt.name where opt: Option<User>.
A typo, or a private getter method you should call instead.

How to fix it

1. Reach the inner value

if let Some(u) = &opt { println!("{}", u.name); }

Other wordings of this error

no field on type, no field `

E0609Types and traits

Activein rustc 1.99.0

8related errors linked below

The compiler team's explanation

Attempted to access a nonexistent field in a struct.

Erroneous code example:

struct StructWithFields {
    x: u32,
}

let s = StructWithFields { x: 0 };
println!("{}", s.foo); // error: no field `foo` on type `StructWithFields`

To fix this error, check that you didn't misspell the field's name or that the field actually exists. Example:

struct StructWithFields {
    x: u32,
}

let s = StructWithFields { x: 0 };
println!("{}", s.x); // ok!

From rustc --explain E0609 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.

Up next

Often hit nextE0308: mismatched typesA related error from the same family.Read it next →

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