How to resolve fast ai module not found error

Question

I am working through the Fast AI material and when I run the following Python code:

!pip install -Uqq fastbook
import fastbook
fastbook.setup_book()

I get this error message:

ModuleNotFoundError: No module named 'fastai.vision.all'

I have tried to update the installation using conda install fastbook -c fasti and also tried restarting the runtime, however it still isn't working. How can I resolve this?