MAJOR: Downgrade to Gradio 3.50.2 and update all API calls for compatibility to fix persistent JSON schema errors

README.md

@@ -4,7 +4,7 @@ emoji: 🎯
 colorFrom: blue
 colorTo: purple
 sdk: gradio
-sdk_version: 4.28.3
+sdk_version: 3.50.2
 app_file: app.py
 pinned: false
 license: mit

app.py

@@ -12,14 +12,11 @@ from modules.llm_handler import generate_coaching_question, evaluate_response, g
 from modules.report_generator import generate_pdf_report
 
 def convert_to_gradio_format(messages):
-    """Convert message format to be compatible with Gradio 4.36.1"""
+    """Convert message format to be compatible with Gradio 3.x"""
     if not messages:
         return []
     
-    # If already in tuple format, return as is
-    if messages and isinstance(messages[0], (list, tuple)) and len(messages[0]) == 2:
-        return messages
-    
+    # For Gradio 3.x, use simple string pairs [user, assistant]
     result = []
     user_msg = None
     
@@ -42,7 +39,7 @@ def convert_to_gradio_format(messages):
     return result
 
 def add_message_to_history(history, role, content):
-    """Add a message to history and convert to Gradio format"""
+    """Add a message to history and convert to Gradio 3.x format"""
     if not history:
         history = []
     
@@ -244,7 +241,7 @@ with gr.Blocks() as app:
             user_name = gr.Textbox(label="Your Name")
             
             coaching_type_dd = gr.Dropdown(
-                config.COACHING_TYPES, 
+                choices=config.COACHING_TYPES, 
                 label="Product Management Focus Area"
             )
             gr.Markdown("*Choose the area you want to improve*")
@@ -266,7 +263,7 @@ with gr.Blocks() as app:
             with gr.Row():
                 # Simplified audio input
                 audio_in = gr.Audio(
-                    sources=["microphone"], 
+                    source="microphone", 
                     type="filepath", 
                     label="🎙️ Record Your Response"
                 )
@@ -291,8 +288,8 @@ with gr.Blocks() as app:
         outputs=[audio_in, status_text]
     )
     
-    # Simplified audio handling
-    audio_in.stop_recording(
+    # Simplified audio handling for Gradio 3.x
+    audio_in.change(
         fn=handle_coaching_turn,
         inputs=[audio_in, chatbot, state],
         outputs=[chatbot, state, audio_in, download_pdf_btn, audio_out]

requirements.txt

@@ -1,4 +1,4 @@
-gradio==4.28.3
+gradio==3.50.2
 groq
 openai-whisper
 pydub