blocks

app.py

@@ -143,11 +143,11 @@ with block:
 
         # From file        
         submit_detect_file.click(fn=track_blocks, 
-                                inputs= video_input, 
-                                outputs = video_output4,
+                                inputs= [video_input], 
+                                outputs = [video_output4],
                                 queue=True,
                                 batch=True, 
-                                max_batch_size=16,)
+                                max_batch_size=16)
         
     
         submit_detect_web.click(fn=show_tracking,