You need to activate your QIIME 2 environment first with source activate qiime2-2019.7 (or whatever the environment name is). Please read the installation instructions at qiime2.org carefully for more details.
MacQIIME is QIIME 1.9.1. That’s a different (no longer supported) version of the software. You need to use the QIIME-2019.7 (or similar) version of the software for the tutorials to work. I think we talked about that problem earlier:
I agree with, though: naming your environment qiime-2019.7 or something similar can help you manage your environments while.