nameof operator doesn't work

Question

I'm learning F#. Here's the code:

let f x =
    let m = nameof x
    m

[<EntryPoint>]
let main argv =
    let x = f "z"
    0

However, I get the following error: The value or constructor 'nameof' is not defined.

What I'm doing wrong?

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There is no knowledge that is not power.

Answer 1

See:

https://github.com/dotnet/fsharp/pull/6325

Answer 2

@Captain Kernel

Thanks, it worked!

---

There is no knowledge that is not power.