SOLVED Bullseye install Librespot error FIX
Bullseye installing Librespot error fix.
--- stderr thread 'main' panicked at 'Pkg-config failed - usually this is because alsa development headers are not installed. For Fedora users: # dnf install alsa-lib-devel For Debian/Ubuntu users: # apt-get install libasound2-dev pkg_config details: `"pkg-config" "--libs" "--cflags" "alsa"` did not exit successfully: exit status: 1 --- stderr Package alsa was not found in the pkg-config search path. Perhaps you should add the directory containing `alsa.pc' to the PKG_CONFIG_PATH environment variable No package 'alsa' found ', /home/pi/.cargo/registry/src/github.com-1285ae84e5963aae/alsa-sys-0.3.1/build.rs:6:50 note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace warning: build failed, waiting for other jobs to finish... error: build failed Error detected ! Librespot for GoogleAssistant is now installed ! Press [Enter] to continue
The FIX for me was below then retrying install.
cd sudo apt install librust-alsa-sys-dev