## Keyboard shortcuts

Press `←` or `→` to navigate between chapters

Press `S` or `/` to search in the book

Press `?` to show this help

Press `Esc` to hide this help

# Error code E0244

#### Note: this error code is no longer emitted by the compiler.

This error indicates that too many type parameters were found in a type or trait.

For example, the `Foo` struct below has no type parameters, but is supplied with two in the definition of `Bar`:

    #![allow(unused)]
    fn main() {
    struct Foo { x: bool }

    struct Bar<S, T> { x: Foo<S, T> }
    }