Can't add additional packages to enviornment created from lock file

[nhsavage]

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What happened?

when trying to install additional packages to an environment build from a lock file I get:

(pycpt_environment) luser@DTY378BHC2:~$ conda install  r-essentials r-base
Channels:
 - defaults
 - conda-forge
 - iri-nextgen
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: failed

InvalidMatchSpec: Invalid spec 'conda-forge/linux-64::_libgcc_mutex==0.1=conda_forge[md5=d7c89558ba9fa0495403155b64376d81]': Libmamba only supports a subset of the MatchSpec interface for now. You can only use ('name', 'version', 'build', 'channel', 'subdir'), but you tried to use ('md5',).

Conda Info

(pycpt_environment) luser@DTY378BHC2:~$ conda info

     active environment : pycpt_environment
    active env location : /home/luser/miniconda3/envs/pycpt_environment
            shell level : 1
       user config file : /home/luser/.condarc
 populated config files : /home/luser/.condarc
          conda version : 23.11.0
    conda-build version : not installed
         python version : 3.11.5.final.0
                 solver : libmamba (default)
       virtual packages : __archspec=1=skylake
                          __conda=23.11.0=0
                          __glibc=2.35=0
                          __linux=5.15.133.1=0
                          __unix=0=0
       base environment : /home/luser/miniconda3  (writable)
      conda av data dir : /home/luser/miniconda3/etc/conda
  conda av metadata url : None
           channel URLs : https://repo.anaconda.com/pkgs/main/linux-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/linux-64
                          https://repo.anaconda.com/pkgs/r/noarch
          package cache : /home/luser/miniconda3/pkgs
                          /home/luser/.conda/pkgs
       envs directories : /home/luser/miniconda3/envs
                          /home/luser/.conda/envs
               platform : linux-64
             user-agent : conda/23.11.0 requests/2.31.0 CPython/3.11.5 Linux/5.15.133.1-microsoft-standard-WSL2 ubuntu/22.04.3 glibc/2.35 solver/libmamba conda-libmamba-solver/23.12.0 libmambapy/1.5.3
                UID:GID : 1000:1000
             netrc file : None
           offline mode : False

Conda Config

(pycpt_environment) luser@DTY378BHC2:~$ conda config --show-sources
==> /home/luser/.condarc <==
auto_activate_base: False

Conda list

(pycpt_environment) luser@DTY378BHC2:~$ conda list --show-channel-urls
# packages in environment at /home/luser/miniconda3/envs/pycpt_environment:
#
# Name                    Version                   Build  Channel
_libgcc_mutex             0.1                 conda_forge    conda-forge
_openmp_mutex             4.5                       2_gnu    conda-forge
alsa-lib                  1.2.9                hd590300_0    conda-forge
anyio                     3.7.1              pyhd8ed1ab_0    conda-forge
argon2-cffi               23.1.0             pyhd8ed1ab_0    conda-forge
argon2-cffi-bindings      21.2.0          py310h5764c6d_3    conda-forge
asttokens                 2.2.1              pyhd8ed1ab_0    conda-forge
attr                      2.5.1                h166bdaf_1    conda-forge
attrs                     23.1.0             pyh71513ae_1    conda-forge
aws-c-auth                0.7.3                he2921ad_3    conda-forge
aws-c-cal                 0.6.2                hc309b26_0    conda-forge
aws-c-common              0.9.0                hd590300_0    conda-forge
aws-c-compression         0.2.17               h4d4d85c_2    conda-forge
aws-c-event-stream        0.3.2                h2e3709c_0    conda-forge
aws-c-http                0.7.12               hc865f51_1    conda-forge
aws-c-io                  0.13.32              h019f825_2    conda-forge
aws-c-mqtt                0.9.5                h3a0376c_1    conda-forge
aws-c-s3                  0.3.14               h1678ad6_3    conda-forge
aws-c-sdkutils            0.1.12               h4d4d85c_1    conda-forge
aws-checksums             0.1.17               h4d4d85c_1    conda-forge
aws-crt-cpp               0.23.0               h40cdbb9_5    conda-forge
aws-sdk-cpp               1.10.57             h6f6b8fa_21    conda-forge
backcall                  0.2.0              pyh9f0ad1d_0    conda-forge
backports                 1.0                pyhd8ed1ab_3    conda-forge
backports.functools_lru_cache 1.6.5              pyhd8ed1ab_0    conda-forge
beautifulsoup4            4.12.2             pyha770c72_0    conda-forge
bleach                    6.0.0              pyhd8ed1ab_0    conda-forge
blosc                     1.21.4               h0f2a231_0    conda-forge
bokeh                     3.2.2              pyhd8ed1ab_0    conda-forge
bottleneck                1.3.7           py310h0a54255_0    conda-forge
brotli                    1.0.9                h166bdaf_9    conda-forge
brotli-bin                1.0.9                h166bdaf_9    conda-forge
brotlipy                  0.7.0           py310h5764c6d_1005    conda-forge
bzip2                     1.0.8                h7f98852_4    conda-forge
c-ares                    1.19.1               hd590300_0    conda-forge
ca-certificates           2023.7.22            hbcca054_0    conda-forge
cairo                     1.16.0            hbbf8b49_1016    conda-forge
cartopy                   0.22.0          py310h7cbd5c2_0    conda-forge
certifi                   2023.7.22          pyhd8ed1ab_0    conda-forge
cffi                      1.15.1          py310h255011f_3    conda-forge
cftime                    1.6.2           py310hde88566_1    conda-forge
charset-normalizer        3.2.0              pyhd8ed1ab_0    conda-forge
click                     8.1.7           unix_pyh707e725_0    conda-forge
cloudpickle               2.2.1              pyhd8ed1ab_0    conda-forge
comm                      0.1.4              pyhd8ed1ab_0    conda-forge
contourpy                 1.1.0           py310hd41b1e2_0    conda-forge
cptbin                    17.8.3               h3d0eb6f_0    iri-nextgen
cptcore                   2.2.0                      py_1    iri-nextgen
cptdl                     1.1.1                      py_0    iri-nextgen
cptextras                 1.2.0                      py_0    iri-nextgen
cptio                     1.0.4                      py_0    iri-nextgen
cryptography              41.0.3          py310h75e40e8_0    conda-forge
cycler                    0.11.0             pyhd8ed1ab_0    conda-forge
cytoolz                   0.12.2          py310h2372a71_0    conda-forge
dask                      2023.8.1           pyhd8ed1ab_0    conda-forge
dask-core                 2023.8.1           pyhd8ed1ab_0    conda-forge
dbus                      1.13.6               h5008d03_3    conda-forge
debugpy                   1.6.8           py310hc6cd4ac_0    conda-forge
decorator                 5.1.1              pyhd8ed1ab_0    conda-forge
defusedxml                0.7.1              pyhd8ed1ab_0    conda-forge
distributed               2023.8.1           pyhd8ed1ab_0    conda-forge
entrypoints               0.4                pyhd8ed1ab_0    conda-forge
exceptiongroup            1.1.3              pyhd8ed1ab_0    conda-forge
executing                 1.2.0              pyhd8ed1ab_0    conda-forge
expat                     2.5.0                hcb278e6_1    conda-forge
font-ttf-dejavu-sans-mono 2.37                 hab24e00_0    conda-forge
font-ttf-inconsolata      3.000                h77eed37_0    conda-forge
font-ttf-source-code-pro  2.038                h77eed37_0    conda-forge
font-ttf-ubuntu           0.83                 hab24e00_0    conda-forge
fontconfig                2.14.2               h14ed4e7_0    conda-forge
fonts-conda-ecosystem     1                             0    conda-forge
fonts-conda-forge         1                             0    conda-forge
fonttools                 4.42.1          py310h2372a71_0    conda-forge
freetype                  2.12.1               hca18f0e_1    conda-forge
fsspec                    2023.6.0           pyh1a96a4e_0    conda-forge
geos                      3.12.0               h59595ed_0    conda-forge
gettext                   0.21.1               h27087fc_0    conda-forge
gflags                    2.2.2             he1b5a44_1004    conda-forge
glib                      2.76.4               hfc55251_0    conda-forge
glib-tools                2.76.4               hfc55251_0    conda-forge
glog                      0.6.0                h6f12383_0    conda-forge
gmp                       6.2.1                h58526e2_0    conda-forge
graphite2                 1.3.13            h58526e2_1001    conda-forge
gst-plugins-base          1.22.5               hf7dbed1_0    conda-forge
gstreamer                 1.22.5               h98fc4e7_0    conda-forge
harfbuzz                  7.3.0                hdb3a94d_0    conda-forge
hdf4                      4.2.15               h501b40f_6    conda-forge
hdf5                      1.14.2          nompi_h4f84152_100    conda-forge
icu                       72.1                 hcb278e6_0    conda-forge
idna                      3.4                pyhd8ed1ab_0    conda-forge
importlib-metadata        6.8.0              pyha770c72_0    conda-forge
importlib_metadata        6.8.0                hd8ed1ab_0    conda-forge
importlib_resources       6.0.1              pyhd8ed1ab_0    conda-forge
ipykernel                 6.25.1             pyh71e2992_0    conda-forge
ipython                   8.14.0             pyh41d4057_0    conda-forge
ipython_genutils          0.2.0                      py_1    conda-forge
ipywidgets                8.1.0              pyhd8ed1ab_0    conda-forge
jedi                      0.19.0             pyhd8ed1ab_0    conda-forge
jinja2                    3.1.2              pyhd8ed1ab_1    conda-forge
joblib                    1.3.2              pyhd8ed1ab_0    conda-forge
jsonschema                4.19.0             pyhd8ed1ab_1    conda-forge
jsonschema-specifications 2023.7.1           pyhd8ed1ab_0    conda-forge
jupyter                   1.0.0           py310hff52083_8    conda-forge
jupyter_client            7.3.4              pyhd8ed1ab_0    conda-forge
jupyter_console           6.6.3              pyhd8ed1ab_0    conda-forge
jupyter_core              5.3.1           py310hff52083_0    conda-forge
jupyter_server            1.23.6             pyhd8ed1ab_0    conda-forge
jupyterlab_pygments       0.2.2              pyhd8ed1ab_0    conda-forge
jupyterlab_widgets        3.0.8              pyhd8ed1ab_0    conda-forge
keyutils                  1.6.1                h166bdaf_0    conda-forge
kiwisolver                1.4.5           py310hd41b1e2_0    conda-forge
krb5                      1.21.2               h659d440_0    conda-forge
lame                      3.100             h166bdaf_1003    conda-forge
lcms2                     2.15                 haa2dc70_1    conda-forge
ld_impl_linux-64          2.40                 h41732ed_0    conda-forge
lerc                      4.0.0                h27087fc_0    conda-forge
libabseil                 20230125.3      cxx17_h59595ed_0    conda-forge
libaec                    1.0.6                hcb278e6_1    conda-forge
libarrow                  13.0.0           hb9dc469_0_cpu    conda-forge
libblas                   3.9.0           17_linux64_openblas    conda-forge
libbrotlicommon           1.0.9                h166bdaf_9    conda-forge
libbrotlidec              1.0.9                h166bdaf_9    conda-forge
libbrotlienc              1.0.9                h166bdaf_9    conda-forge
libcap                    2.69                 h0f662aa_0    conda-forge
libcblas                  3.9.0           17_linux64_openblas    conda-forge
libclang                  15.0.7          default_h7634d5b_3    conda-forge
libclang13                15.0.7          default_h9986a30_3    conda-forge
libcrc32c                 1.1.2                h9c3ff4c_0    conda-forge
libcups                   2.3.3                h4637d8d_4    conda-forge
libcurl                   8.2.1                hca28451_0    conda-forge
libdeflate                1.18                 h0b41bf4_0    conda-forge
libedit                   3.1.20191231         he28a2e2_2    conda-forge
libev                     4.33                 h516909a_1    conda-forge
libevent                  2.1.12               hf998b51_1    conda-forge
libexpat                  2.5.0                hcb278e6_1    conda-forge
libffi                    3.4.2                h7f98852_5    conda-forge
libflac                   1.4.3                h59595ed_0    conda-forge
libgcc-ng                 13.1.0               he5830b7_0    conda-forge
libgcrypt                 1.10.1               h166bdaf_0    conda-forge
libgfortran-ng            13.1.0               h69a702a_0    conda-forge
libgfortran5              13.1.0               h15d22d2_0    conda-forge
libglib                   2.76.4               hebfc3b9_0    conda-forge
libgomp                   13.1.0               he5830b7_0    conda-forge
libgoogle-cloud           2.12.0               h840a212_1    conda-forge
libgpg-error              1.47                 h71f35ed_0    conda-forge
libgrpc                   1.56.2               h3905398_1    conda-forge
libiconv                  1.17                 h166bdaf_0    conda-forge
libjpeg-turbo             2.1.5.1              h0b41bf4_0    conda-forge
liblapack                 3.9.0           17_linux64_openblas    conda-forge
libllvm15                 15.0.7               h5cf9203_3    conda-forge
libnetcdf                 4.9.2           nompi_h80fb2b6_111    conda-forge
libnghttp2                1.52.0               h61bc06f_0    conda-forge
libnsl                    2.0.0                h7f98852_0    conda-forge
libnuma                   2.0.16               h0b41bf4_1    conda-forge
libogg                    1.3.4                h7f98852_1    conda-forge
libopenblas               0.3.23          pthreads_h80387f5_0    conda-forge
libopus                   1.3.1                h7f98852_1    conda-forge
libpng                    1.6.39               h753d276_0    conda-forge
libpq                     15.4                 hfc447b1_0    conda-forge
libprotobuf               4.23.3               hd1fb520_0    conda-forge
libsndfile                1.2.2                hbc2eb40_0    conda-forge
libsodium                 1.0.18               h36c2ea0_1    conda-forge
libsqlite                 3.43.0               h2797004_0    conda-forge
libssh2                   1.11.0               h0841786_0    conda-forge
libstdcxx-ng              13.1.0               hfd8a6a1_0    conda-forge
libsystemd0               254                  h3516f8a_0    conda-forge
libthrift                 0.18.1               h8fd135c_2    conda-forge
libtiff                   4.5.1                h8b53f26_1    conda-forge
libutf8proc               2.8.0                h166bdaf_0    conda-forge
libuuid                   2.38.1               h0b41bf4_0    conda-forge
libvorbis                 1.3.7                h9c3ff4c_0    conda-forge
libwebp-base              1.3.1                hd590300_0    conda-forge
libxcb                    1.15                 h0b41bf4_0    conda-forge
libxkbcommon              1.5.0                h5d7e998_3    conda-forge
libxml2                   2.11.5               h0d562d8_0    conda-forge
libzip                    1.10.1               h2629f0a_0    conda-forge
libzlib                   1.2.13               hd590300_5    conda-forge
locket                    1.0.0              pyhd8ed1ab_0    conda-forge
lz4                       4.3.2           py310h0cfdcf0_0    conda-forge
lz4-c                     1.9.4                hcb278e6_0    conda-forge
markupsafe                2.1.3           py310h2372a71_0    conda-forge
matplotlib                3.7.1           py310hff52083_0    conda-forge
matplotlib-base           3.7.1           py310he60537e_0    conda-forge
matplotlib-inline         0.1.6              pyhd8ed1ab_0    conda-forge
mistune                   3.0.1              pyhd8ed1ab_0    conda-forge
mpg123                    1.31.3               hcb278e6_0    conda-forge
msgpack-python            1.0.5           py310hdf3cbec_0    conda-forge
munkres                   1.1.4              pyh9f0ad1d_0    conda-forge
mysql-common              8.0.33               hf1915f5_2    conda-forge
mysql-libs                8.0.33               hca2cd23_2    conda-forge
nbclassic                 1.0.0              pyhb4ecaf3_1    conda-forge
nbclient                  0.8.0              pyhd8ed1ab_0    conda-forge
nbconvert                 7.8.0              pyhd8ed1ab_0    conda-forge
nbconvert-core            7.8.0              pyhd8ed1ab_0    conda-forge
nbconvert-pandoc          7.8.0              pyhd8ed1ab_0    conda-forge
nbformat                  5.9.2              pyhd8ed1ab_0    conda-forge
ncurses                   6.4                  hcb278e6_0    conda-forge
nest-asyncio              1.5.6              pyhd8ed1ab_0    conda-forge
netcdf4                   1.6.4           nompi_py310hba70d50_102    conda-forge
notebook                  6.5.4              pyha770c72_0    conda-forge
notebook-shim             0.2.3              pyhd8ed1ab_0    conda-forge
nspr                      4.35                 h27087fc_0    conda-forge
nss                       3.92                 h1d7d5a4_0    conda-forge
numpy                     1.25.2          py310ha4c1d20_0    conda-forge
openjpeg                  2.5.0                hfec8fc6_2    conda-forge
openssl                   3.1.2                hd590300_0    conda-forge
orc                       1.9.0                h385abfd_1    conda-forge
packaging                 23.1               pyhd8ed1ab_0    conda-forge
pandas                    2.1.0           py310hcc13569_0    conda-forge
pandoc                    3.1.3                h32600fe_0    conda-forge
pandocfilters             1.5.0              pyhd8ed1ab_0    conda-forge
parso                     0.8.3              pyhd8ed1ab_0    conda-forge
partd                     1.4.0              pyhd8ed1ab_0    conda-forge
patsy                     0.5.3              pyhd8ed1ab_0    conda-forge
pcre2                     10.40                hc3806b6_0    conda-forge
pexpect                   4.8.0              pyh1a96a4e_2    conda-forge
pickleshare               0.7.5                   py_1003    conda-forge
pillow                    10.0.0          py310h582fbeb_0    conda-forge
pixman                    0.40.0               h36c2ea0_0    conda-forge
pkgutil-resolve-name      1.3.10             pyhd8ed1ab_0    conda-forge
platformdirs              3.10.0             pyhd8ed1ab_0    conda-forge
ply                       3.11                       py_1    conda-forge
pooch                     1.7.0              pyha770c72_3    conda-forge
proj                      9.2.1                ha643af7_0    conda-forge
prometheus_client         0.17.1             pyhd8ed1ab_0    conda-forge
prompt-toolkit            3.0.39             pyha770c72_0    conda-forge
prompt_toolkit            3.0.39               hd8ed1ab_0    conda-forge
psutil                    5.9.5           py310h1fa729e_0    conda-forge
pthread-stubs             0.4               h36c2ea0_1001    conda-forge
ptyprocess                0.7.0              pyhd3deb0d_0    conda-forge
pulseaudio-client         16.1                 hb77b528_4    conda-forge
pure_eval                 0.2.2              pyhd8ed1ab_0    conda-forge
pyarrow                   13.0.0          py310hf9e7431_0_cpu    conda-forge
pycparser                 2.21               pyhd8ed1ab_0    conda-forge
pycpt                     2.5.0                      py_0    iri-nextgen
pygments                  2.16.1             pyhd8ed1ab_0    conda-forge
pyopenssl                 23.2.0             pyhd8ed1ab_1    conda-forge
pyparsing                 3.1.1              pyhd8ed1ab_0    conda-forge
pyproj                    3.6.0           py310h24ef57a_1    conda-forge
pyqt                      5.15.9          py310h04931ad_4    conda-forge
pyqt5-sip                 12.12.2         py310hc6cd4ac_4    conda-forge
pyshp                     2.3.1              pyhd8ed1ab_0    conda-forge
pysocks                   1.7.1              pyha2e5f31_6    conda-forge
python                    3.10.12         hd12c33a_0_cpython    conda-forge
python-dateutil           2.8.2              pyhd8ed1ab_0    conda-forge
python-fastjsonschema     2.18.0             pyhd8ed1ab_0    conda-forge
python-tzdata             2023.3             pyhd8ed1ab_0    conda-forge
python_abi                3.10                    3_cp310    conda-forge
pytz                      2023.3             pyhd8ed1ab_0    conda-forge
pyyaml                    6.0.1           py310h2372a71_0    conda-forge
pyzmq                     25.1.1          py310h5bbb5d0_0    conda-forge
qt-main                   5.15.8              h7fe3ca9_15    conda-forge
qtconsole                 5.4.3              pyhd8ed1ab_0    conda-forge
qtconsole-base            5.4.3              pyha770c72_0    conda-forge
qtpy                      2.4.0              pyhd8ed1ab_0    conda-forge
rdma-core                 28.9                 h59595ed_1    conda-forge
re2                       2023.03.02           h8c504da_0    conda-forge
readline                  8.2                  h8228510_1    conda-forge
referencing               0.30.2             pyhd8ed1ab_0    conda-forge
requests                  2.31.0             pyhd8ed1ab_0    conda-forge
rpds-py                   0.10.0          py310hcb5633a_0    conda-forge
s2n                       1.3.49               h06160fa_0    conda-forge
scikit-learn              1.3.0           py310hf7d194e_0    conda-forge
scipy                     1.11.2          py310ha4c1d20_0    conda-forge
send2trash                1.8.2              pyh41d4057_0    conda-forge
setuptools                68.1.2             pyhd8ed1ab_0    conda-forge
shapely                   2.0.1           py310h7dcad9a_2    conda-forge
sip                       6.7.11          py310hc6cd4ac_0    conda-forge
six                       1.16.0             pyh6c4a22f_0    conda-forge
snappy                    1.1.10               h9fff704_0    conda-forge
sniffio                   1.3.0              pyhd8ed1ab_0    conda-forge
sortedcontainers          2.4.0              pyhd8ed1ab_0    conda-forge
soupsieve                 2.3.2.post1        pyhd8ed1ab_0    conda-forge
sqlite                    3.43.0               h2c6b66d_0    conda-forge
stack_data                0.6.2              pyhd8ed1ab_0    conda-forge
statsmodels               0.14.0          py310h278f3c1_1    conda-forge
tblib                     1.7.0              pyhd8ed1ab_0    conda-forge
terminado                 0.17.1             pyh41d4057_0    conda-forge
threadpoolctl             3.2.0              pyha21a80b_0    conda-forge
tinycss2                  1.2.1              pyhd8ed1ab_0    conda-forge
tk                        8.6.12               h27826a3_0    conda-forge
toml                      0.10.2             pyhd8ed1ab_0    conda-forge
tomli                     2.0.1              pyhd8ed1ab_0    conda-forge
toolz                     0.12.0             pyhd8ed1ab_0    conda-forge
tornado                   6.1             py310h5764c6d_3    conda-forge
traitlets                 5.9.0              pyhd8ed1ab_0    conda-forge
typing-extensions         4.7.1                hd8ed1ab_0    conda-forge
typing_extensions         4.7.1              pyha770c72_0    conda-forge
tzdata                    2023c                h71feb2d_0    conda-forge
ucx                       1.14.1               h4a2ce2d_3    conda-forge
unicodedata2              15.0.0          py310h5764c6d_0    conda-forge
urllib3                   1.26.15            pyhd8ed1ab_0    conda-forge
wcwidth                   0.2.6              pyhd8ed1ab_0    conda-forge
webencodings              0.5.1                      py_1    conda-forge
websocket-client          1.6.2              pyhd8ed1ab_0    conda-forge
widgetsnbextension        4.0.8              pyhd8ed1ab_0    conda-forge
xarray                    2023.8.0           pyhd8ed1ab_0    conda-forge
xcb-util                  0.4.0                hd590300_1    conda-forge
xcb-util-image            0.4.0                h8ee46fc_1    conda-forge
xcb-util-keysyms          0.4.0                h8ee46fc_1    conda-forge
xcb-util-renderutil       0.3.9                hd590300_1    conda-forge
xcb-util-wm               0.4.1                h8ee46fc_1    conda-forge
xkeyboard-config          2.39                 hd590300_0    conda-forge
xorg-kbproto              1.0.7             h7f98852_1002    conda-forge
xorg-libice               1.1.1                hd590300_0    conda-forge
xorg-libsm                1.2.4                h7391055_0    conda-forge
xorg-libx11               1.8.6                h8ee46fc_0    conda-forge
xorg-libxau               1.0.11               hd590300_0    conda-forge
xorg-libxdmcp             1.1.3                h7f98852_0    conda-forge
xorg-libxext              1.3.4                h0b41bf4_2    conda-forge
xorg-libxrender           0.9.11               hd590300_0    conda-forge
xorg-renderproto          0.11.1            h7f98852_1002    conda-forge
xorg-xextproto            7.3.0             h0b41bf4_1003    conda-forge
xorg-xf86vidmodeproto     2.3.1             h7f98852_1002    conda-forge
xorg-xproto               7.0.31            h7f98852_1007    conda-forge
xyzservices               2023.7.0           pyhd8ed1ab_0    conda-forge
xz                        5.2.6                h166bdaf_0    conda-forge
yaml                      0.2.5                h7f98852_2    conda-forge
zeromq                    4.3.4                h9c3ff4c_1    conda-forge
zict                      3.0.0              pyhd8ed1ab_0    conda-forge
zipp                      3.16.2             pyhd8ed1ab_0    conda-forge
zlib                      1.2.13               hd590300_5    conda-forge
zstd                      1.5.5                hfc55251_0    conda-forge

Additional Context

lock file used to build the environment is this one: https://github.com/iri-pycpt/notebooks/releases/latest/download/conda-linux-64.lock

I have been able to work around this using --solver classic but the solve gets very slow

[nhsavage]

some more insights:

1. this fails for various other package installs e.g. cdsapi from conda-forge
2. the lock file seems to have some incompatible packages in it :-(
3. if the incompatibilites are fixed by run conda update --all --solver classic then libmamba works :-)

[nhsavage]

I think that my underlying problem is the inconstent packages, but I also think that libmamba should give a more helpful error if it can't solve this (and libmamba should be able to update a package with inconsistencies)

[jaimergp]

Added #429. libmamba ignores md5 fields (see issue), so we can safely drop them. I've used your lockfile locally and can reproduce the behaviour. After applying the fix, the environment solves without errors.