Failure when installing vendored package

[VintageDoggo]

Hi! I'm currently migrating my ROS2 applications to a Pixi workflow and everything has been going relatively well except for a package.

I need to rebuild the rmw_zenoh_cpp package in my workflow, however, it fails in an intermediate step, which is building the vendored package for zenoh_cpp_vendor. See the CMakeLists file.

I get an error stating that the download of zenoh-c fails, as seen below. The problem states that the module pkg_resources is not present, however I've ensured to express setuptools (which contains the pkg_resources module) in my dependencies within pixi.toml in my workspace .

Am I missing a step for building a package that depends on vendored packages? Or is there an environment conflict between the tasks spawned by ament_vendor and Pixi?

Any help is greatly appreciated!

│ FAILED: [code=1] zenoh_c_vendor-prefix/src/zenoh_c_vendor-stamp/zenoh_c_vendor-download $SRC_DIR/build/zenoh_c_vendor-prefix/src/zenoh_c_vendor-stamp/zenoh
 │ │ _c_vendor-download 
 │ │ cd $SRC_DIR/build/zenoh_c_vendor-prefix/src && $BUILD_PREFIX/bin/cmake -E rm -rf $SRC_DIR/build/zenoh_c_vendor-prefix/src/zenoh_c_vendor && $BUILD_PREFIX/b
 │ │ in/cmake -E make_directory $SRC_DIR/build/zenoh_c_vendor-prefix/src/zenoh_c_vendor && $PREFIX/bin/vcs import . --input $SRC_DIR/build/zenoh_c_vendor.repos 
 │ │ --shallow --recursive --force && $BUILD_PREFIX/bin/cmake -E touch $SRC_DIR/build/zenoh_c_vendor-prefix/src/zenoh_c_vendor-stamp/zenoh_c_vendor-download
 │ │ Traceback (most recent call last):
 │ │   File "$PREFIX/bin/vcs", line 7, in <module>
 │ │     from vcstool.commands.vcs import main
 │ │   File "$PREFIX/lib/python3.12/site-packages/vcstool/commands/vcs.py", line 3, in <module>
 │ │     from vcstool.commands.help import get_entrypoint
 │ │   File "$PREFIX/lib/python3.12/site-packages/vcstool/commands/help.py", line 4, in <module>
 │ │     from pkg_resources import load_entry_point
 │ │ ModuleNotFoundError: No module named 'pkg_resources'