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A computed property name in an interface must refer to an expression whose type is a literal type or a 'unique symbol' type

I have tried

importing level from winston and change the type to string|symbol but it doesn't resolve the problem.

It keep giving me following error "A computed property name in an interface must refer to an expression whose type is a literal type or a 'unique symbol' type."

any clue? any pointer is helpful

Your symbol level needs to be defined as a unique symbol , like so:

const level: unique symbol = Symbol();
Then modify your interface like this:
interface MyInterface {
    [level]?: string;
                Whoa. I was wanting to do [typeof level]?: string; because level is a runtime value, and we want the type. Weird.
– trusktr
                Jan 30 at 1:05
        
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