While trying to run the latest version of

./pants

(as downloaded from https://pantsbuild.github.io/setup/pants) with a

pants.ini

with version 1.18.0 I got an error that took a while to fix. The error message is

Exception message: Unrecognized command line flags on global scope: --pants-bin-name.

I resolved it by using the

./v1

pattern instead. It should be possible to give a hint that someone is using an older engine instead of giving a cryptic error message. Would it be helpful for me to make in issue/feature request around this?

Ah, tricky. That option

--pants-bin-name

must have not existed in 1.18.0 yet, so the

./pants

script is erroring when trying to set it. You’ll want to use an older version of the

./pants

script for now. https://github.com/pantsbuild/setup/blob/d1da382f6de0420940ec6007a39cba87c21075c6/pants should work

Yup. I just tested from 1.18.0 to 1.29.0. It doesn't work before v1.23.0. In v1.22.0 and older it fails.

Got it. That sounds right. It’s a tricky script to handle version control for because it’s up to each codebase admin to redownload the script whenever we make edits, and as you see, it depends on which

pants_version

they’re on

I was just doing the step upgrade to see the depreciation messages

Awesome! Definitely a good strategy

Thanks for the patch! will look tomorrow