Update app.py

app.py

@@ -22,8 +22,11 @@ def predict(image):
         # Convert PIL Image to NumPy array (required by Ultralytics)
         image = np.array(image) 
         results = model(image) 
-        detections = []
 
+        if len(results.xyxy[0]) == 0:
+            return "No components detected."
+
+        detections = []
         for *xyxy, conf, cls in results.xyxy[0]:
             x1, y1, x2, y2 = map(int, xyxy)
             label = labels[int(cls)]