**GeminiException** status code 404

Gemini API
1

Hello, I’ve been trying to build a flutter app with gemini API. It will be like a chatbot with additional features. I try to send a media file to Gemini but I get this error:

rror: GeminiException => This exception was thrown because the response has a status code of 404 and RequestOptions.validateStatus was configured to throw for this status code.

I/flutter (12001): The status code of 404 has the following meaning: “Client error - the request contains bad syntax or cannot be fulfilled”

I/flutter (12001): Read more about status codes at HTTP response status codes - HTTP | MDN

I/flutter (12001): In order to resolve this exception you typically have either to verify and fix your request code or you have to fix the server code.

Before sending a prompt to Gemini it was working fine but now even when I delete the prompt it doesn’t work.

 void _sendMessage(ChatMessage chatMessage) {
    setState(() {
      messages = [chatMessage, ...messages];
    });
    try {
      String question = chatMessage.text;
      List<Uint8List>? images;
      if (chatMessage.medias?.isNotEmpty ?? false) {
        images = [
          File(chatMessage.medias!.first.url).readAsBytesSync(),
        ];
      }
      gemini
          .streamGenerateContent(
        question,
        images: images,
      )
          .listen((event) {
        ChatMessage? lastMessage = messages.firstOrNull;
        if (lastMessage != null && lastMessage.user == geminiUser) {
          lastMessage = messages.removeAt(0);
          String response = event.content?.parts?.fold(
                  "", (previous, current) => "$previous ${current.text}") ??
              "";
          lastMessage.text += response;
          setState(
            () {
              messages = [lastMessage!, ...messages];
            },
          );
        } else {
          String response = event.content?.parts?.fold(
                  "", (previous, current) => "$previous ${current.text}") ??
              "";
          ChatMessage message = ChatMessage(
            user: geminiUser,
            createdAt: DateTime.now(),
            text: response,
          );
          setState(() {
            messages = [message, ...messages];
          });
        }
      });
    } catch (e) {
      print(e);
    }
  }

I get the error at .listen(event) part

Thanks in advance!

2

Welcome to the forums!

You don’t show how you’re creating the gemini object or what model you’re using.

Could you be using a Gemini 1.0 Pro Vision model? That model was recently discontinued using AI Studio’s API and may finally have been shut down.

4

I just created an API Key and used that key so I don’t know which model I’m using… I tried to look for information about it but I couldn’t find anything. Can I choose the model I want? I’m new to this so I don’t know

5

Can you show the code you used to create the gemini object?

6

here `class _MealsScreenState extends State {
final Gemini gemini = Gemini.instance;

List messages = ;

ChatUser currentUser = ChatUser(id: “0”, firstName: “User”);
ChatUser geminiUser = ChatUser(
id: “1”,
firstName: “Gemini”,
profileImage:
“https://seeklogo.com/images/G/google-gemini-logo-A5787B2669-seeklogo.com.png”,
);`

7

This doesn’t look like a Google package, and whoever created it didn’t document how to use a different model very well.

I’m not a Flutter/Dart expert, but reading through the code I think you can specify the modelName as a parameter when you call gemini.streamGenerateContent(). So perhaps something like

gemini.streamGenerateContent(
  question,
  modelName: 'gemini-1.5-flash',
);
8

It’s a team project and my teammate used flutter_gemini package. I tried this but I still get the same error.