'I Installed the Spyder Notebook plug-in for Spyder with conda install but it didn't work

I'm following the instruction from this link.

conda install spyder-notebook -c spyder-ide

I'm using Mac. I want to run JupyterNotebook on Spyder but for some reason, the notebook does not show up on my Spyder app. I don't even find the plugins file that was supposed to be downloaded to my pc



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