How to fix Rust E0308 expected type found different type

Fix Rust E0308 by ensuring the value you are assigning or returning matches the expected type, often by adding a type annotation or converting the value.

fn main() {
    let expected: i32 = 5; // Explicitly declare type to match context
    let found = 5;         // Inferred as i32
    let result = expected + found;
}

If the types are incompatible (e.g., String vs &str), convert one to match the other using methods like .to_string() or &value.

The Rust E0308 error means you are trying to put a square peg in a round hole. The computer expected a specific kind of data, like a whole number, but you gave it something else, like a text string. You fix it by either changing the data you provide to match what is expected or telling the computer exactly what kind of data you intended to use.