Ergonomic, hermetic, user-friendly software build system for Python, Go, Java, Kotlin, Protobuf, Scala, Shell. Pants lets you fearlessly scale up your codebase!

Pants

Hi I tried updating to pants 2.18.0 and got an <unrecognized symbol> Error for a macro in my root build file. It reminds me of <https://github.com/pantsbuild/pants/issues/19156|this issue>.
```Exception message: 1 Exception encountered:

InvalidTargetException: BUILD:25: The 'subprocess_environment_env_vars' field in target //:local-environment must be an iterable of strings (e.g. a list of strings), but was `env_vars_devcontainer()` with type `<unrecognized symbol>`.```
Created an <https://github.com/pantsbuild/pants/issues/20178|issue>.

Hi, ~similar yes, but different.~ (edit: good find)
Are you sure about the return value from your macro? Perhaps put it into the description field of a dummy target for introspection with peek to debug?
```target(name="dummy", description=f"macro value: {some_macro(..)!r}")```
then: `pants peek path/to:dummy`

ah, nvm, on a closer look I realize macros are not supported on environment targets during bootstrap, which used to be silently ignored. I left a comment as such on the ticket.
thanks for the report!