nih-plug template gives error: "package ID specification `sidebox` did not match any packages"

[GageHowe]

I used "https://github.com/robbert-vdh/nih-plug-template" to build a package called "sidebox". I used Mac, homebrew, and cookiecutter. My code: https://github.com/GageHoweTamu/sidebox_plug

Steps to replicate:

cookiecutter gh:robbert-vdh/nih-plug-template cd sidebox cargo xtask bundle sidebox --release

Error:

Finished release [optimized] target(s) in 0.15s
Running `target/release/xtask bundle sidebox --release`
error: package ID specification `sidebox` did not match any packages
Error: Could not build sidebox

Note: this happens on Mac, but not Windows