GStreamer missing deps and no audio

I’m using mopidy with ncmpcpp and mopidy-mpd on macOS. Though ncmpcpp connects to mopidy, there is no audio output. Running mopidy in the terminal supplies the following error:

ERROR    2022-07-23 18:08:26,241 [3125:Audio-2] pykka
  Unhandled exception in Audio (urn:uuid:8d021f9c-bc19-4353-a4e3-16ebf88148c6):
Traceback (most recent call last):
  File "/usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages/pykka/_actor.py", line 186, in _actor_loop
    self.on_start()
  File "/usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages/mopidy/audio/actor.py", line 460, in on_start
    self._setup_playbin()
  File "/usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages/mopidy/audio/actor.py", line 481, in _setup_playbin
    playbin.set_property("flags", _GST_PLAY_FLAGS_AUDIO)
AttributeError: 'NoneType' object has no attribute 'set_property'

“mopidy deps” reveals that GStreamer is missing all dependencies:

Executable: /usr/local/bin/mopidy
Platform: macOS-12.4-x86_64-i386-64bit
Python: CPython 3.9.13 from /usr/local/Cellar/python@3.9/3.9.13_1/Frameworks/Python.framework/Versions/3.9/lib/python3.9
Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  requests: 2.22.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    chardet: 3.0.4 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    idna: 2.8 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    urllib3: 1.25.7 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    certifi: 2019.11.28 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
  tornado: 6.0.3 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
Mopidy-Scrobbler: 2.0.1 from /usr/local/Cellar/mopidy-scrobbler/2.0.1/libexec/lib/python3.9/site-packages
  Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
  pylast: 3.1.0 from /usr/local/Cellar/mopidy-scrobbler/2.0.1/libexec/lib/python3.9/site-packages
Mopidy-Local: 3.2.0 from /usr/local/Cellar/mopidy-local/3.2.0/libexec/lib/python3.9/site-packages
  Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
  uritools: 3.0.0 from /usr/local/Cellar/mopidy-local/3.2.0/libexec/lib/python3.9/site-packages
Mopidy-TuneIn: 1.1.0 from /usr/local/Cellar/mopidy-tunein/1.1.0/libexec/lib/python3.9/site-packages
  Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  requests: 2.22.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    chardet: 3.0.4 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    idna: 2.8 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    urllib3: 1.25.7 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    certifi: 2019.11.28 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
Mopidy-MPD: 3.1.0 from /usr/local/Cellar/mopidy-mpd/3.1.0/libexec/lib/python3.9/site-packages
  Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
Mopidy-Spotify: 4.1.0 from /usr/local/Cellar/mopidy-spotify/4.1.0/libexec/lib/python3.9/site-packages
  Mopidy: 3.2.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  Pykka: 2.0.2 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  pyspotify: 2.1.3 from /usr/local/Cellar/pyspotify/2.1.3_2/libexec/lib/python3.9/site-packages
    cffi: 1.13.2 from /usr/local/Cellar/pyspotify/2.1.3_2/libexec/lib/python3.9/site-packages
      pycparser: 2.19 from /usr/local/Cellar/pyspotify/2.1.3_2/libexec/lib/python3.9/site-packages
    setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
  requests: 2.22.0 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    chardet: 3.0.4 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    idna: 2.8 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    urllib3: 1.25.7 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
    certifi: 2019.11.28 from /usr/local/Cellar/mopidy/3.2.0/libexec/lib/python3.9/site-packages
  setuptools: 62.3.2 from /usr/local/lib/python3.9/site-packages
GStreamer: 1.20.3.0 from /usr/local/lib/python3.9/site-packages/gi
  Detailed information:
    Python wrapper: python-gi 3.42.2
    Relevant elements:
      Found:
        none
      Not found:
        uridecodebin
        souphttpsrc
        appsrc
        alsasink
        osssink
        oss4sink
        pulsesink
        flump3dec
        id3demux
        id3v2mux
        lamemp3enc
        mad
        mpegaudioparse
        mpg123audiodec
        vorbisdec
        vorbisenc
        vorbisparse
        oggdemux
        oggmux
        oggparse
        flacdec
        flacparse
        shout2send

Here is my effective config:

[core]
cache_dir = $XDG_CACHE_DIR/mopidy
config_dir = $XDG_CONFIG_DIR/mopidy
data_dir = /usr/local/var/log/mopidy
max_tracklist_length = 10000
restore_state = false

[logging]
verbosity = 0
format = %(levelname)-8s %(asctime)s [%(process)d:%(threadName)s] %(name)s\n  %(message)s
color = true
config_file =

[audio]
mixer = software
mixer_volume =
output = tee name=t t. ! queue ! autoaudiosink t. ! queue ! audioresample ! audioconvert ! audio/x-raw,rate=44100,channels=2,format=S16LE ! wavenc ! filesink location=/tmp/mpd.fifo
buffer_time =

[proxy]
scheme =
hostname =
port =
username =
password =

[local]
enabled = true
max_search_results = 100
media_dir = ~/Media/Music
scan_timeout = 1000
scan_flush_threshold = 100
scan_follow_symlinks = true
included_file_extensions =
excluded_file_extensions =
  .cue
  .directory
  .html
  .jpeg
  .jpg
  .log
  .nfo
  .pdf
  .png
  .txt
  .zip
directories =
  Albums                  local:directory?type=album
  Artists                 local:directory?type=artist
  Composers               local:directory?type=artist&role=composer
  Genres                  local:directory?type=genre
  Performers              local:directory?type=artist&role=performer
  Release Years           local:directory?type=date&format=%25Y
  Tracks                  local:directory?type=track
  Last Week's Updates     local:directory?max-age=604800
  Last Month's Updates    local:directory?max-age=2592000
timeout = 10
use_artist_sortname = false
album_art_files =
  *.jpg
  *.jpeg
  *.png

[mpd]
enabled = true
hostname = 127.0.0.1
port = 6600
password =
max_connections = 20
connection_timeout = 60
zeroconf = Mopidy MPD server on $hostname
command_blacklist =
  listall
  listallinfo
default_playlist_scheme = m3u

[scrobbler]
enabled = true
username = jackddouglas
password = ********

[spotify]
enabled = true
username = jackddouglas
password = ********
client_id = d26a2850cb41446eb941039870b899b6
client_secret = ********
bitrate = 320
volume_normalization = true
private_session = false
timeout = 10
allow_cache = true
allow_network = true
allow_playlists = true
search_album_count = 20
search_artist_count = 10
search_track_count = 50
toplist_countries =

[tunein]
enabled = true
timeout = 5000
filter =

[file]
enabled = true
media_dirs =
  $XDG_MUSIC_DIR|Music
excluded_file_extensions =
  .directory
  .html
  .jpeg
  .jpg
  .log
  .nfo
  .pdf
  .png
  .txt
  .zip
show_dotfiles = false
follow_symlinks = true
metadata_timeout = 1000

[http]
enabled = true
hostname = 127.0.0.1
port = 6680
zeroconf = Mopidy HTTP server on $hostname
allowed_origins =
csrf_protection = true
default_app = mopidy

[m3u]
enabled = true
base_dir =
default_encoding = latin-1
default_extension = .m3u8
playlists_dir =

[softwaremixer]
enabled = true

[stream]
enabled = true
protocols =
  http
  https
  mms
  rtmp
  rtmps
  rtsp
metadata_blacklist =
timeout = 5000

Any help with fixing this and getting audio output would be greatly appreciated.

Thanks!