.NET MAUI Android - System.PlatformNotSupportedException

Question

Hi,
I'am trying to run my .NET MAUI project on Android, but I'm getting the following error:

System.PlatformNotSupportedException Message=Operation is not supported on this platform.

Here is the project link:
https://github.com/devenv2/SmartChat/blob/master/SmartChat/MainPage.xaml.cs

Has anyone encountered this issue before? Any ideas on how to fix it?

Thanks in advance

Answer 1

Hello,

This issue could be reproduced in android platform.

Based on this Tutorial: Create a recommendation app with .NET MAUI and ChatGPT, it will create a .NET MAUI app for **Windows ** in Visual Studio that calls OpenAI's ChatGPT APIs, android platforms do not include it.

You can open an issue in the openai dotnet, confirm with PG about will this nuget package support for android platform.

However, you can call REST API by HttpClient to do it.

 var apiKey = "sk-xxxxxxxxxxxxx"; // input your API Key
 var endpoint = "https://api.openai.com/v1/chat/completions";

 var httpClient = new HttpClient();
 httpClient.DefaultRequestHeaders.Add("Authorization", $"Bearer {apiKey}");

 var requestBody = new
 {
     model = "gpt-3.5-turbo", 
     messages = new[]
     {
     new { role = "user", content = "Say a quote" }
 }
 };

 var requestContent = new StringContent(
 JsonSerializer.Serialize(requestBody),
 Encoding.UTF8,
 "application/json"
 );

 var response = await httpClient.PostAsync(endpoint, requestContent);
 var responseBody = await response.Content.ReadAsStringAsync();

 Console.WriteLine(responseBody);

Best Regards,

Leon Lu

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