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# Error code E0090

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

You gave too few lifetime arguments. Example:

    fn foo<'a: 'b, 'b: 'a>() {}

    fn main() {
        foo::<'static>(); // error: wrong number of lifetime arguments:
                          //        expected 2, found 1
    }

Please check you give the right number of lifetime arguments. Example:

    fn foo<'a: 'b, 'b: 'a>() {}

    fn main() {
        foo::<'static, 'static>();
    }