go - Golang embedded struct type

Question

I have these types:

type Value interface{}

type NamedValue struct {
    Name  string
    Value Value
}

type ErrorValue struct {
    NamedValue
    Error error
}

I can use use v := NamedValue{Name: "fine", Value: 33}, but I am not able to use e := ErrorValue{Name: "alpha", Value: 123, Error: err}

Seems that embedding syntax was ok, but using it doesn't work?

Answer 1

Waitting for answers