How to use form recognizer in asp.net MVC (.net frame work 4.6.2)

Question

Code:
FormPageCollection formPages = await recognizerClient
.StartRecognizeContentAsync(stream)
.WaitForCompletionAsync();

Question:
When I use this piece of code from console application(.net frame work 4.6.2), it successfully responded.
But if I use this piece of code from .net MVC, it doesn't respond.
Does form recognizer not support web version?

Answer 1

In fact my controller forgot to use async Task<ActionResult>, the problem is solved