您好，遇到两个问题

[Awenkid]

第一个问题：使用(1)python hubconf.py(2)python detect.py --weights yolov5s.pdparams --source'图片地址'之后，出现报错如下：
Traceback (most recent call last):
File "detect.py", line 255, in
main(opt)
File "detect.py", line 250, in main
run(**vars(opt))
File "D:\Program Files\anaconda\envs\paddle\lib\site-packages\decorator.py", line 232, in fun
return caller(func, *(extras + args), **kw)
File "D:\Program Files\anaconda\envs\paddle\lib\site-packages\paddle\fluid\dygraph\base.py", line 347, in _decorate_function
return func(*args, **kwargs)
File "detect.py", line 149, in run
det[:, :4] = scale_boxes(im.shape[2:], det[:, :4], im0.shape).round()
File "D:\Program Files\anaconda\envs\paddle\lib\site-packages\paddle\fluid\dygraph\tensor_patch_methods.py", line 747, in getitem
return self._getitem_index_not_tensor(item)
ValueError: (InvalidArgument) Too many indices (2) for tensor of dimension 1.
[Hint: Expected valid_indexs <= rank == true, but received valid_indexs <= rank:0 != true:1.] (at ..\paddle/fluid/pybind/slice_utils.h:309)
第二个问题：
是否可以把yolov5的预训练模型(yolov5s.pdparams)换成自己训练好的？又应该如何修改？
（是做单目标检测，也就是图片里只有一个目标物体）
希望大佬可以回答我的问题，非常感谢