rust type_error ai_generated true

error[E0599]: no method named `method` found for struct `Type`

ID: rust/e0599-no-method-named

Also available as: JSON · Markdown
90%Fix Rate
92%Confidence
50Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
1 active — — —

Root Cause

Method doesn't exist on type, or trait not imported.

generic

Workarounds

  1. 92% success Check if you need to use a trait: use TraitName; 
    use std::io::Read;  // now .read() works

    Sources: https://doc.rust-lang.org/book/ch10-02-traits.html

  2. 88% success Check the type — you may have the wrong type; use compiler suggestions 
    // If method is on a trait, import it:
use std::io::Read;    // now .read() works on File
use std::fmt::Write;  // now .write_fmt() works

// Check if you need a different type:
let s: &str = "hello";
// s.push('!');  // error: no method push on &str
let mut s = s.to_string();  // convert to String
s.push('!');  // works

    Sources: https://doc.rust-lang.org/error_codes/E0599.html

Dead Ends

Common approaches that don't work:

  1. Implement the method manually on the struct 50% fail

    May already exist in a trait that just needs importing

  2. Cast to a different type 65% fail

    Type mismatch is the symptom, not the solution

Error Chain

Frequently confused with: