pixi build: ErrorObject { code: InvalidParams, message: "Invalid params: unknown variant 1.1.1, expected 1.", data: None }

[hadim]

I am trying to use pixi build at hadim/feedrattler#1 but I am seeing and error:

$ pixi build
Error: 
  × unable to setup the build-backend to build the project
  ├─▶ failed to communicate with the build backend (pixi-build-python)
  ├─▶ ErrorObject { code: InvalidParams, message: "Invalid params: unknown variant `1.1.1`, expected `1`.", data: None }
  ╰─▶ ErrorObject { code: InvalidParams, message: "Invalid params: unknown variant `1.1.1`, expected `1`.", data: None }

This is when setting the project.version to a string in pyproject.toml. When trying to use dynamic logic with project.dynamic = ["version"], it seems like pixi can't get the version:

$ pixi build
Error: 
  × failed to parse project from /Users/hadim/Code/libs/feedrattler/pyproject.toml: missing field 'version' in table

So two questions:

• Any idea what triggers Invalid params: unknown variant?
• Is dynamic version from pyproject.toml supported yet? If it isn't, will it be? (I guess it's tricky given that you'll need to run some code to get it right?)

[baszalmstra]

A fix is on the way! We are in the process of stabilizing the protocol between the build backends, so hopefully after this week this shouldnt break anymore.

See #2939

[baszalmstra]

Is dynamic version from pyproject.toml supported yet? If it isn't, will it be? (I guess it's tricky given that you'll need to run some code to get it right?)

Not yet, but Im sure we can support it.

[hadim]

Thanks! Let me know if you want me to try it on the above PR when it's ready.

[baszalmstra]

The latest version of pixi on main and the backends should be aligned now.

[baszalmstra]

Make sure to clean the tool cache! pixi clean cache --tool

[hadim]

I confirm hadim/feedrattler#1 works locally for pixi build.

[baszalmstra]

Awesome! If you have more feedback please share it! 😄

[hadim]

I posted one question at #2944. It's more about the design of the pixi build feature.