No module named 'torchvision'; 'torchvision' is not a package

I gonna use some submodules(datasets, models,transforms) of torchvision. I have installed torchvision correctly by typing conda install pytorch==1.2.0 torchvision==0.4.0 cudatoolkit=10.0 -c pytorch
then I opened a python envs to test my versions
Screenshot from 2020-02-24 12-05-15
everything is no problem.
However, when I trying to launch my own project, I got a very strange error,

import torchvision.models as models
ModuleNotFoundError: No module named 'torchvision.models'; 'torchvision' is not a package

I searched for solutions to this error on google, but don’t find any useful messages. So any cues would be highly appreciated. Thank you in advance.

Are you running the script in the same environment?
You would usually see this kind of error, if your current Python env does not contain the installed libs (often a mismatch of the used Jupyter Python kernel vs. your terminal).