RuntimeError: invalid argument 0: Sizes of tensors must match except in dimension 1. Got 272 and 270 in dimension 2 at /pytorch/aten/src/THC/generic/THCTensorMath.cu:71

[wudrans]

Traceback (most recent call last):
File "/home/wlj/softPakage/pycharm-community-2019.2/helpers/pydev/pydevd.py", line 2060, in
main()
File "/home/wlj/softPakage/pycharm-community-2019.2/helpers/pydev/pydevd.py", line 2054, in main
globals = debugger.run(setup['file'], None, None, is_module)
File "/home/wlj/softPakage/pycharm-community-2019.2/helpers/pydev/pydevd.py", line 1405, in run
return self._exec(is_module, entry_point_fn, module_name, file, globals, locals)
File "/home/wlj/softPakage/pycharm-community-2019.2/helpers/pydev/pydevd.py", line 1412, in _exec
pydev_imports.execfile(file, globals, locals) # execute the script
File "/home/wlj/softPakage/pycharm-community-2019.2/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
exec(compile(contents+"\n", file, 'exec'), glob, loc)
File "/home/wlj/work/download_master/csp_pytorch-master/test_one_pic_pedestrian.py", line 25, in
x_cls, x_reg, x_off = model(x)
File "/home/wlj/.virtualenvs/pytorch_virtualenv/lib/python3.6/site-packages/torch/nn/modules/module.py", line 547, in call
result = self.forward(*input, **kwargs)
File "/home/wlj/work/download_master/csp_pytorch-master/models/cspnet.py", line 177, in forward
cat = torch.cat([p3up, p4up, p5up], dim=1)
RuntimeError: invalid argument 0: Sizes of tensors must match except in dimension 1. Got 272 and 270 in dimension 2 at /pytorch/aten/src/THC/generic/THCTensorMath.cu:71

我直接运行test_caltech.py，会报错如上，torch.cat时，数据维度不一样，请问这该怎么解决呢