Azure Cognitive Face throws NullReferenceException

Question

I'm trying to make a Xamarin app that will recognize faces on pictures taken by camera. Somehow, this part of the code throws a NullReferenceException

using (Stream imageFileStream = new MemoryStream(a))
{
    imageFileStream.Position = 0;
    var result = await faceServiceClient.DetectAsync(imageFileStream);

    if (result != null)
        await BlobStorageService.SaveBlockBlob("photos", a, Entry1.Text);
}

Where "a" is a byte[] of the picture

I wonder how can I fix this issue?

Exeption.SystemStack shows that the exception is inside the var result... — Junkpot, Mar 23 '19 at 20:02
To extend what @G.hakim mentioned, can you show how you create `faceServiceClient`? — Jon, Mar 24 '19 at 14:13

score 0 · Accepted Answer · answered Mar 25 '19 at 10:05

0

I figured that Microsoft stopped supporting Project Oxford (or something like that), so I used Azure.Cognitive.Vision.Face instead :\

answered Mar 25 '19 at 10:05

Junkpot

11
2

Azure Cognitive Face throws NullReferenceException

1 Answers1