Update app.py

app.py

@@ -412,7 +412,7 @@ async def generate_accurate_srt(
     
     return srt_path, audio_path
 
-# IMPROVEMENT 4: Progress Reporting
+# IMPROVEMENT 4: Progress Reporting with proper error handling for older Gradio versions
 async def process_text_with_progress(
     text, 
     pitch, 
@@ -425,7 +425,7 @@ async def process_text_with_progress(
 ):
     # Input validation
     if not text or text.strip() == "":
-        raise gr.Error("Please enter some text to convert to speech.")
+        return None, None, None, True, "Please enter some text to convert to speech."
     
     # Format pitch and rate strings
     pitch_str = f"{pitch:+d}Hz" if pitch != 0 else "+0Hz"
@@ -449,11 +449,14 @@ async def process_text_with_progress(
             parallel=parallel_processing
         )
         
-        return srt_path, audio_path, audio_path
+        # If successful, return results and hide error
+        return srt_path, audio_path, audio_path, False, ""
     except TTSError as e:
-        raise gr.Error(f"TTS Error: {str(e)}")
+        # Return specific TTS error
+        return None, None, None, True, f"TTS Error: {str(e)}"
     except Exception as e:
-        raise gr.Error(f"Unexpected error: {str(e)}")
+        # Return any other error
+        return None, None, None, True, f"Unexpected error: {str(e)}"
 
 # Voice options dictionary
 voice_options = {
@@ -560,6 +563,9 @@ with gr.Blocks(title="Advanced TTS with Configurable SRT Generation") as app:
     
     submit_btn = gr.Button("Generate Audio & Subtitles")
     
+    # Add error message component
+    error_output = gr.Textbox(label="Status", visible=False)
+    
     with gr.Row():
         with gr.Column():
             audio_output = gr.Audio(label="Preview Audio")
@@ -567,10 +573,7 @@ with gr.Blocks(title="Advanced TTS with Configurable SRT Generation") as app:
             srt_file = gr.File(label="Download SRT")
             audio_file = gr.File(label="Download Audio")
     
-    # Add error message component
-    error_output = gr.Textbox(label="Status", visible=False)
-    
-    # Handle button click
+    # Handle button click with manual error handling instead of .catch()
     submit_btn.click(
         fn=process_text_with_progress,
         inputs=[
@@ -585,12 +588,11 @@ with gr.Blocks(title="Advanced TTS with Configurable SRT Generation") as app:
         outputs=[
             srt_file,
             audio_file,
-            audio_output
+            audio_output,
+            error_output,
+            error_output
         ],
         api_name="generate"
-    ).catch(
-        fn=lambda e: {"visible": True, "value": str(e)},
-        outputs=[error_output]
     )
 
 if __name__ == "__main__":