+First, make sure that the package is installed; in the example if you use mamba case it would be `mamba install ros-noetic-std-msgs`. If you are using `conda`, `mamba` or `micromamba` can use `rosdep` to install dependencies, while `rosdep` is [not supported on pixi at the moment](https://github.com/conda-forge/rosdep-feedstock/issues/35). Second, make sure that your `CMAKE_PREFIX_PATH` points to your `robostackenv`, in the example case you could achieve this by `export CMAKE_PREFIX_PATH=/Users/me/miniconda3/envs/robostackenv/`. This might happen if `CMAKE_PREFIX_PATH` is not empty when you activate your `robostackenv`.
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