Bug: ChatBot not displaying Gemini API responses

[riddhimagupta2]

Description

The chatbot accepts user input successfully, but no response is displayed after sending a message to the Gemini API.

Current Behavior

• User messages appear correctly
• No bot response is shown
• Errors are not visible in the UI

Expected Behavior

• Bot responses should display properly
• API errors should be handled and shown when needed
• Null responses should be handled safely

Suggested Fix

• Add proper error handling using try-catch
• Handle null API responses
• Add loading/error states for better debugging and UX

Tech Stack

• Flutter
• google_generative_ai
• Gemini API

Enhancement

• Add typing indicator
• Improve chat bubble UI
• Improve response formatting

[riddhimagupta2]

Hi @andoriyaprashant ,I would like to work on this issue under GSSoC 2026. Please assign it to me.

[prem-create]

Hey @andoriyaprashant and @riddhimagupta2 , I debugged this issue locally and found that the chatbot response was failing mainly due to Gemini API/model handling. The older model config seems to cause errors, and since the errors are not shown in the UI, it looks like the bot is simply not responding.

I was able to fix it locally by updating the Gemini model. I’ll raise a PR with the fix so it can be reviewed.

[riddhimagupta2]

#427

[github-actions]

Hello @riddhimagupta2! Your issue #424 has been closed. Thank you for your contribution!