Rust errors / Types and traits
Rust compiler error · checked with rustc 1.99.0
Rust error E0428: the name `Bar` is defined multiple times
What it meansA type or module has been defined more than once.
What rustc prints
error[E0428]: the name `Bar` is defined multiple times --> main.rs:2:1 | 1 | struct Bar; | ----------- previous definition of the type `Bar` here 2 | struct Bar; // error: duplicate definition of value `Bar` | ^^^^^^^^^^^ `Bar` redefined here | = note: `Bar` must be defined only once in the type namespace of this module
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.
E0428Types and traits
Activein rustc 1.99.0
7related errors linked below
The compiler team's explanation
A type or module has been defined more than once.
Erroneous code example:
struct Bar;
struct Bar; // error: duplicate definition of value `Bar`Please verify you didn't misspell the type/module's name or remove/rename the duplicated one. Example:
struct Bar;
struct Bar2; // ok!From rustc --explain E0428 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.
Related errors
- E0308mismatched types
- E0277the trait bound is not satisfied
- E0599no method named X found in the current scope
- E0433failed to resolve
- E0416identifier `x` is bound more than once in the same pattern
- E0422cannot find struct, variant or union type `Foo` in this scope
- E0434can't capture dynamic environment in a fn item
Up next
Often hit nextE0308: mismatched typesA related error from the same family.Read it next →Did this answer your question?