Anaconda navigator in linux

i am getting this error while i am trying to implement the code in anaconda by creating enviroment fastai

idk where i am doing this wrong

Either fastai isn’t installed, or you are using the wrong kernel. It says, “no module named ‘fastai’”

conda activate fastai
conda list

If fastai isn’t in your list of packages, then you need to install it.

I prefer jupyter lab.
To make sure all my conda envs are shows as possible kernels, I install nb_conda_kernels.

conda install jupyterlab nb_conda_kernels
jupyter lab

Then, I can select from all my env’s that I created with conda.