ERROR - Exception caught while uploading models: Error(s) in loading state_dict for Ensemble: Unexpected key(s) in state_dict



I have got the above output as a param from torch.load(‘yolov5s.pt’ map_location=‘cpu’).
I have used model = params['model'] .
got the following issue:

 File "models/load.py", line 73, in attempt_load
    model.append(ckpt['ema' if ckpt.get('ema') else 'model'].float().fuse().eval()) 
  File "/home/user/anaconda3/envs/dali/lib/python3.8/site-packages/torch/nn/modules/module.py", line 1177, in __getattr__
    raise AttributeError("'{}' object has no attribute '{}'".format(
AttributeError: 'Model' object has no attribute 'append'