Problem using tools: invalid sequence

[RESEARCHEKASA]

When adding a Role.Tool message. I always get:

Invalid parameter: messages with role 'tool' must be a response to a preceeding message with 'tool_calls'

The Role.Tool message has the result from the tool, that is correctly called...

Where is my mistake?

Thanks!

[StephenHodgson]

You must submit tool call output results before adding your tool message to the message list.

Check the unit tests for example

OpenAI-DotNet/OpenAI-DotNet-Tests/TestFixture_04_Chat.cs

Lines 340 to 350 in 29fdae0

	var usedTool = response.FirstChoice.Message.ToolCalls[0];
	Assert.IsNotNull(usedTool);
	Assert.IsTrue(usedTool.Function.Name.Contains(nameof(WeatherService.GetCurrentWeatherAsync)));
	Console.WriteLine($"{response.FirstChoice.Message.Role}: {usedTool.Function.Name} | Finish Reason: {response.FirstChoice.FinishReason}");
	Console.WriteLine($"{usedTool.Function.Arguments}");
	var functionResult = await usedTool.InvokeFunctionAsync();
	Assert.IsNotNull(functionResult);
	messages.Add(new Message(usedTool, functionResult));
	Console.WriteLine($"{Role.Tool}: {functionResult}");
	chatRequest = new ChatRequest(messages);
	response = await OpenAIClient.ChatEndpoint.GetCompletionAsync(chatRequest);

[RESEARCHEKASA]

Thanks!!! This solves my problem.

Thanks again, have a nice day!