Error message "Ansible version is 2.9.20" even though ansible 2.12.3 is installed

[simX]

I just updated my repo clone of algo to the latest commits, and now I'm getting an error when trying to run ./algo which says:

fatal: [localhost]: FAILED! => {
"assertion": "ansible_version.full is version(required_ansible_version.ver, required_ansible_version.op)",
"changed": false,
"evaluated_to": false,
"msg": "Ansible version is 2.9.20. You must update the requirements to use this version of Algo. Try to run python3 -m pip install -U -r requirements.txt\n"
}

Thing is, I have run the python3 -m pip install -U -r requirements.txt command already. I also tried installing ansible-core-2.12.3 and ansible-5.0.1 via Homebrew. I can't find any other possible location for ansible other than /usr/local/bin/ansible which is where brew installs it.

I even completely uninstalled ansible-core and ansible, and the same error message pops up. I'm not sure where it's finding this version of ansible.

I'm on macOS Mojave 10.14.6, if that matters, with the Xcode 11.3.1 command line tools installed. I know this is a fairly old version of macOS (but don't get me started). Is this version of macOS maybe just not supported anymore?

Just in case it was needed, here's the output of /usr/local/bin/ansible --version

COMPUTER:algo USER$ /usr/local/bin/ansible --version
ansible [core 2.12.3]
config file = /Users/USER/Development/algo/ansible.cfg
configured module search path = ['/Users/USER/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
ansible python module location = /usr/local/lib/python3.9/site-packages/ansible
ansible collection location = /Users/USER/.ansible/collections:/usr/share/ansible/collections
executable location = /usr/local/bin/ansible
python version = 3.9.13 (main, May 24 2022, 20:51:29) [Clang 11.0.3 (clang-1103.0.32.62)]
jinja version = 3.0.3
libyaml = True

[davidemyers]

Algo installs its own copy of Ansible in the .env directory. Try removing that directory and re-running the commands in Step 4 of Deploy the Algo Server.

As I suggest here you're usually better off downloading a new copy of Algo rather than updating an old copy with git pull.

A recent change to Algo caused it to require Python 3.8 or later. I don't recall what version is included in the Xcode tools you're using, but you might want to make sure the copy of python3 from Homebrew is first on your PATH.

[simX]

Ah, didn't realize it was installing in its own separate directory, and good to know the tip about just recloning algo. This did indeed fix the problem. Thanks!

[Oscarjia]

@davidemyers if i remove .env directory and re-running the commands in Step 4 of Deploy the Algo Server, it will still install ansible? Why you recommend to delete .env?
Should i keep the requirements file ansible==6.1.0 or use the os level ansible version? if i install ansible through requirements file, when i run ansible --version it failed and message is "no ansible command find."