Update app.py

app.py

@@ -217,11 +217,25 @@ with gr.Blocks(title=title, css=css, theme=theme) as demo:
         api_name="predict",
     )
 
-# On Spaces, queue is required to get GPU scheduling; set a modest concurrency
-# OLD (pre-Gradio 4.x)
-# demo.queue(concurrency_count=1, max_size=8).launch(share=False)
+# Version-agnostic Gradio startup (works across 3.x/4.x/5.x)
+# Try newer/older signatures, fall back gracefully.
+
+# Queue (GPU scheduling needed on Spaces)
+try:
+    demo.queue(concurrency_count=1, max_size=4)
+except TypeError:
+    try:
+        demo.queue(max_size=4)
+    except TypeError:
+        demo.queue()
+
+# Launch
+try:
+    demo.launch(share=False, max_threads=1, max_queue_size=4)
+except TypeError:
+    try:
+        demo.launch(share=False, max_queue_size=4)
+    except TypeError:
+        demo.launch(share=False)
 
-# NEW (Gradio 4.x+)
-demo.queue()  # no args here anymore
-demo.launch(share=False, concurrency_count=1, max_threads=1, max_queue_size=4)