this is doing something else entirely: it installs xarray from conda-forge, and thus a released version. We don't want that, because it would make previews of the current state on this repository impossible.

If installing from conda fixes the error you see in #9141 @Anu-Ra-g (and if the docs build correctly on main) then it indicates that the reason you're seeing errors must be caused by some local changes you've made to the xarray repo. I would suggest first ensuring that you can build the documentation with no changes (i.e. on the main branch) before seeing what breaks with your changes.

in this case I believe they just didn't fetch the tags, which means setuptools-scm didn't report the right version, and cfgrib complains about that.

I would suggest first ensuring that you can build the documentation with no changes (i.e. on the main branch) before seeing what breaks with your changes.

I tried building the docs from the main branch but I'm getting the same error.