解决 cnocr 包导入 ConvBNActivation 类时出现的 ImportError 错误

This error is occurring because the 'cnocr' package is unable to import the 'ConvBNActivation' class from the 'torchvision.models.mobilenetv2' module. This can happen if there is an issue with the installation of the 'torchvision' package or if there are version compatibility issues between the 'cnocr' and 'torchvision' packages.

To fix this error, you can try the following steps:

1. Check if the 'torchvision' package is installed correctly. You can do this by running 'pip list' in your terminal and looking for 'torchvision' in the list of installed packages. If it is not installed, you can install it by running 'pip install torchvision'.

2. Check if there are any version compatibility issues between the 'cnocr' and 'torchvision' packages. You can do this by checking the version requirements of 'cnocr' and 'torchvision' in their respective documentation. If there are version compatibility issues, you can try upgrading or downgrading one or both packages to a compatible version.

3. If the above steps do not work, you can try uninstalling and reinstalling both the 'cnocr' and 'torchvision' packages to ensure a clean installation.

Once you have resolved the issue with the 'torchvision.models.mobilenetv2' module, the 'cnocr' package should be able to import the 'ConvBNActivation' class and the error should be resolved.