Trying to run jupyter lab from prompt yields "Segmentation fault:11"

To help you compose your answer:
I am a naif, a very new beginner person with all things coding.
I am trying to use jupyter lab in order to learn Python in order to raise my geographic information system (GIS) map-making skills. (I use QGIS.)
I came to jupyter lab through the University of Helsinki free online course “Geo-Python”.
I understand human language well (native English, pretty good with Spanish).
But I do not understand most of the terms I see members posting here.
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Using a MacBook Pro on which I run OS Mojave (10.14.2).
I just installed jupyter yesterday (Thursday the 27th of April 2023); I don’t know what version that makes me, but it’s “fresh” today.
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The question
When, in the Mac terminal window, I type “jupiter lab” at the prompt (as directed in the Un.of Helsinki course material), the result is
Segmentation fault: 11

How do I get past this and get jupyter lab to run?

Thank you.

It appears that someone else is experiencing this very recently as per report on: conda - JupyterLab Packaging (jlpm) Segmentation Fault - Stack Overflow and they are also using MacBook. Did you install jupyter from conda-forge, or in a different way? If so would you be happy to provide a full conda list?
Could you try running jupyter lab --debug and list all output prior to the crash (if any)?

Thank you for responding.
I think I did use conda-forge, now that you mention it.
I ran jupyter lab --debug and got
(base) MacBook-Pro-2:~ Cogreg$ jupyter lab --debug

Segmentation fault: 11

(base) MacBook-Pro-2:~ Cogreg$

The conda list follows.
(base) MacBook-Pro-2:~ Cogreg$ conda list

packages in environment at //anaconda3:

Name Version Build Channel

alabaster 0.7.12 pyhd3eb1b0_0
anaconda-client 1.11.1 py310hecd8cb5_0
anaconda-navigator 2.4.0 py310hecd8cb5_0
anaconda-project 0.11.1 py310hecd8cb5_0
anyio 3.5.0 py310hecd8cb5_0
appdirs 1.4.4 pyhd3eb1b0_0
applaunchservices 0.3.0 py310hecd8cb5_0
appnope 0.1.2 py310hecd8cb5_1001
appscript 1.1.2 py310hca72f7f_0
argon2-cffi 21.3.0 pyhd3eb1b0_0
argon2-cffi-bindings 21.2.0 py310hca72f7f_0
arrow 1.2.3 py310hecd8cb5_1
astroid 2.14.2 py310hecd8cb5_0
astropy 5.1 py310h4e76f89_0
asttokens 2.0.5 pyhd3eb1b0_0
atomicwrites 1.4.0 py_0
attrs 22.1.0 py310hecd8cb5_0
automat 20.2.0 py_0
autopep8 1.6.0 pyhd3eb1b0_1
babel 2.11.0 py310hecd8cb5_0
backcall 0.2.0 pyhd3eb1b0_0
backports 1.1 pyhd3eb1b0_0
backports.functools_lru_cache 1.6.4 pyhd3eb1b0_0
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backports.weakref 1.0.post1 py_1
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boltons 23.0.0 pyhd8ed1ab_0 conda-forge
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brotli 1.0.9 hca72f7f_7
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ca-certificates 2022.12.7 h033912b_0 conda-forge
cctools 949.0.1 h9abeeb2_25
cctools_osx-64 949.0.1 hc7db93f_25
certifi 2022.12.7 pyhd8ed1ab_0 conda-forge
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charls 2.2.0 h23ab428_0
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click 8.0.4 py310hecd8cb5_0
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typing-extensions 4.4.0 py310hecd8cb5_0
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tzdata 2022g h04d1e81_0
ujson 5.4.0 py310he9d5cce_0
unidecode 1.2.0 pyhd3eb1b0_0
unixodbc 2.3.11 hb456775_0
urllib3 1.26.14 py310hecd8cb5_0
w3lib 1.21.0 pyhd3eb1b0_0
watchdog 2.1.6 py310h999c104_0
wcwidth 0.2.5 pyhd3eb1b0_0
webencodings 0.5.1 py310hecd8cb5_1
websocket-client 0.58.0 py310hecd8cb5_4
werkzeug 2.2.2 py310hecd8cb5_0
whatthepatch 1.0.2 py310hecd8cb5_0
wheel 0.38.4 py310hecd8cb5_0
widgetsnbextension 3.5.2 py310hecd8cb5_0
wrapt 1.14.1 py310hca72f7f_0
wurlitzer 3.0.2 py310hecd8cb5_0
xarray 2022.11.0 py310hecd8cb5_0
xlwings 0.29.1 py310hecd8cb5_0
xz 5.2.10 h6c40b1e_1
yaml 0.2.5 haf1e3a3_0
yapf 0.31.0 pyhd3eb1b0_0
zeromq 4.3.4 h23ab428_0
zfp 0.5.5 he9d5cce_6
zict 2.1.0 py310hecd8cb5_0
zipp 3.11.0 py310hecd8cb5_0
zlib 1.2.13 h4dc903c_0
zope 1.0 py310hecd8cb5_1
zope.interface 5.4.0 py310hca72f7f_0
zstandard 0.19.0 py310h6c40b1e_0
zstd 1.5.2 hcb37349_0
(base) MacBook-Pro-2:~ Cogreg$

Same issue here, since today, also with Mac OSX Mojave (10.14.6).
Yesterday I ran conda update jupyterlab and I updated the macport packages.

Here are the packages I share with cogreg, with same version and build (all from conda-forge)

boltons                        23.0.0     pyhd8ed1ab_0
ca-certificates                2022.12.7  h033912b_0
certifi                        2022.12.7  pyhd8ed1ab_0
jsonpatch                      1.32       pyhd8ed1ab_0
jsonpointer                    2.0        py_0

Here are the packages shared with cogreg with same version (not necessarily the same build)

argon2-cffi                    21.3.0     pyhd8ed1ab_0
argon2-cffi-bindings           21.2.0     py39ha30fb19_3
backcall                       0.2.0      pyh9f0ad1d_0
backports.functools_lru_cache  1.6.4      pyhd8ed1ab_0
boltons                        23.0.0     pyhd8ed1ab_0
brotlipy                       0.7.0      py39ha30fb19_1005
bzip2                          1.0.8      h0d85af4_4
c-ares                         1.18.1     h0d85af4_0
ca-certificates                2022.12.7  h033912b_0
certifi                        2022.12.7  pyhd8ed1ab_0
cffi                           1.15.1     py39h131948b_3
colorama                       0.4.6      pyhd8ed1ab_0
conda                          23.3.1     py39h6e9494a_0
conda-package-handling         2.0.2      pyh38be061_0
conda-package-streaming        0.7.0      pyhd8ed1ab_1
decorator                      5.1.1      pyhd8ed1ab_0
defusedxml                     0.7.1      pyhd8ed1ab_0
entrypoints                    0.4        pyhd8ed1ab_0
et_xmlfile                     1.1.0      pyhd8ed1ab_0
freetype                       2.12.1     h3f81eb7_1
idna                           3.4        pyhd8ed1ab_0
imagesize                      1.4.1      pyhd8ed1ab_0
ipython_genutils               0.2.0      py_1      
jinja2                         3.1.2      pyhd8ed1ab_1
jsonpatch                      1.32       pyhd8ed1ab_0
jsonpointer                    2.0        py_0      
jsonschema                     4.17.3     pyhd8ed1ab_0
libarchive                     3.6.2      h6d8d9f1_0
libev                          4.33       haf1e3a3_1
libffi                         3.4.2      h0d85af4_5
libgfortran                    5.0.0      11_3_0_h97931a8_31
libopenblas                    0.3.21     openmp_h429af6e_3
libpng                         1.6.39     ha978bb4_0
libsodium                      1.0.18     hbcb3906_1
libssh2                        1.10.0     h47af595_3
libtiff                        4.5.0      hedf67fa_6
libuv                          1.44.2     hac89ed1_0
lz4-c                          1.9.4      hf0c8a7f_0
lzo                            2.10       haf1e3a3_1000
matplotlib-inline              0.1.6      pyhd8ed1ab_0
nest-asyncio                   1.5.6      pyhd8ed1ab_0
pandas                         1.5.3      py39hecff1ad_0
pandocfilters                  1.5.0      pyhd8ed1ab_0
parso                          0.8.3      pyhd8ed1ab_0
pexpect                        4.8.0      pyh1a96a4e_2
pickleshare                    0.7.5      py_1003   
pluggy                         1.0.0      pyhd8ed1ab_5
ptyprocess                     0.7.0      pyhd3deb0d_0
pure_eval                      0.2.2      pyhd8ed1ab_0
pycosat                        0.6.4      py39ha30fb19_1
pycparser                      2.21       pyhd8ed1ab_0
pyparsing                      3.0.9      pyhd8ed1ab_0
pysocks                        1.7.1      pyha2e5f31_6
python-dateutil                2.8.2      pyhd8ed1ab_0
python.app                     3          py39hca72f7f_0
pyyaml                         6.0        py39ha30fb19_5
readline                       8.2        h9e318b2_1
ruamel.yaml                    0.17.21    py39ha30fb19_3
six                            1.16.0     pyh6c4a22f_0
snowballstemmer                2.2.0      pyhd8ed1ab_0
soupsieve                      2.3.2.post1 pyhd8ed1ab_0
sphinxcontrib-devhelp          1.0.2      py_0      
sphinxcontrib-jsmath           1.0.1      py_0      
sphinxcontrib-qthelp           1.0.3      py_0      
sphinxcontrib-serializinghtml  1.1.5      pyhd8ed1ab_2
terminado                      0.17.1     pyhd1c38e8_0
tinycss2                       1.2.1      pyhd8ed1ab_0
tk                             8.6.12     h5dbffcc_0
tomli                          2.0.1      pyhd8ed1ab_0
toolz                          0.12.0     pyhd8ed1ab_0
webencodings                   0.5.1      py_1      
yaml                           0.2.5      h0d85af4_2
zeromq                         4.3.4      he49afe7_1
zlib                           1.2.13     hfd90126_4
zstandard                      0.19.0     py39h5bcbcff_1
zstd                           1.5.2      hbc0c0cd_6

Here are the packages I share with cogreg (not necessarily the same version):

alabaster                      0.7.13     pyhd8ed1ab_0
anyio                          3.6.2      pyhd8ed1ab_0
appnope                        0.1.3      pyhd8ed1ab_0
argon2-cffi                    21.3.0     pyhd8ed1ab_0
argon2-cffi-bindings           21.2.0     py39ha30fb19_3
asttokens                      2.2.1      pyhd8ed1ab_0
attrs                          22.2.0     pyh71513ae_0
babel                          2.12.1     pyhd8ed1ab_1
backcall                       0.2.0      pyh9f0ad1d_0
backports                      1.0        pyhd8ed1ab_3
backports.functools_lru_cache  1.6.4      pyhd8ed1ab_0
beautifulsoup4                 4.12.2     pyha770c72_0
bleach                         6.0.0      pyhd8ed1ab_0
boltons                        23.0.0     pyhd8ed1ab_0
brotlipy                       0.7.0      py39ha30fb19_1005
bzip2                          1.0.8      h0d85af4_4
c-ares                         1.18.1     h0d85af4_0
ca-certificates                2022.12.7  h033912b_0
certifi                        2022.12.7  pyhd8ed1ab_0
cffi                           1.15.1     py39h131948b_3
charset-normalizer             3.1.0      pyhd8ed1ab_0
colorama                       0.4.6      pyhd8ed1ab_0
comm                           0.1.3      pyhd8ed1ab_0
conda                          23.3.1     py39h6e9494a_0
conda-package-handling         2.0.2      pyh38be061_0
conda-package-streaming        0.7.0      pyhd8ed1ab_1
cryptography                   40.0.2     py39hbeae22c_0
debugpy                        1.6.7      py39h7a8716b_0
decorator                      5.1.1      pyhd8ed1ab_0
defusedxml                     0.7.1      pyhd8ed1ab_0
docutils                       0.17.1     py39h6e9494a_2
entrypoints                    0.4        pyhd8ed1ab_0
et_xmlfile                     1.1.0      pyhd8ed1ab_0
executing                      1.2.0      pyhd8ed1ab_0
flit-core                      3.8.0      pyhd8ed1ab_0
freetype                       2.12.1     h3f81eb7_1
icu                            70.1       h96cf925_0
idna                           3.4        pyhd8ed1ab_0
imagesize                      1.4.1      pyhd8ed1ab_0
importlib-metadata             6.6.0      pyha770c72_0
importlib_metadata             6.6.0      hd8ed1ab_0
ipykernel                      6.22.0     pyh736e0ef_0
ipython                        8.13.1     pyhd1c38e8_0
ipython_genutils               0.2.0      py_1      
ipywidgets                     8.0.2      pyhd8ed1ab_1
jedi                           0.18.2     pyhd8ed1ab_0
jinja2                         3.1.2      pyhd8ed1ab_1
json5                          0.9.5      pyh9f0ad1d_0
jsonpatch                      1.32       pyhd8ed1ab_0
jsonpointer                    2.0        py_0      
jsonschema                     4.17.3     pyhd8ed1ab_0
jupyter_client                 8.2.0      pyhd8ed1ab_0
jupyter_core                   5.3.0      py39h6e9494a_0
jupyter_server                 2.5.0      pyhd8ed1ab_0
jupyterlab                     3.6.3      pyhd8ed1ab_0
jupyterlab_pygments            0.2.2      pyhd8ed1ab_0
jupyterlab_server              2.22.1     pyhd8ed1ab_0
jupyterlab_widgets             3.0.3      pyhd8ed1ab_0
krb5                           1.20.1     h049b76e_0
lcms2                          2.15       h2dcdeff_1
lerc                           4.0.0      hb486fe8_0
libarchive                     3.6.2      h6d8d9f1_0
libcurl                        7.88.1     h6df9250_1
libcxx                         16.0.2     hd57cbcb_0
libdeflate                     1.18       hac1461d_0
libedit                        3.1.20191231 h0678c8f_2
libev                          4.33       haf1e3a3_1
libffi                         3.4.2      h0d85af4_5
libgfortran                    5.0.0      11_3_0_h97931a8_31
libgfortran5                   12.2.0     he409387_31
libiconv                       1.17       hac89ed1_0
libnghttp2                     1.52.0     he2ab024_0
libopenblas                    0.3.21     openmp_h429af6e_3
libpng                         1.6.39     ha978bb4_0
libsodium                      1.0.18     hbcb3906_1
libssh2                        1.10.0     h47af595_3
libtiff                        4.5.0      hedf67fa_6
libuv                          1.44.2     hac89ed1_0
libwebp-base                   1.3.0      hb7f2c08_0
libxml2                        2.10.3     h201ad9d_4
llvm-openmp                    16.0.2     hff08bdf_0
lz4-c                          1.9.4      hf0c8a7f_0
lzo                            2.10       haf1e3a3_1000
markupsafe                     2.1.2      py39ha30fb19_0
matplotlib-inline              0.1.6      pyhd8ed1ab_0
mistune                        2.0.5      pyhd8ed1ab_0
nbclassic                      0.5.6      pyhb4ecaf3_1
nbclient                       0.7.4      pyhd8ed1ab_0
nbconvert                      7.3.1      pyhd8ed1ab_0
nbformat                       5.8.0      pyhd8ed1ab_0
ncurses                        6.3        h96cf925_1
nest-asyncio                   1.5.6      pyhd8ed1ab_0
notebook                       6.5.4      pyha770c72_0
notebook-shim                  0.2.3      pyhd8ed1ab_0
numpy                          1.24.3     py39h892e69a_0
openjpeg                       2.5.0      h13ac156_2
openpyxl                       3.0.9      pyhd3eb1b0_0
openssl                        3.1.0      h8a1eda9_2
packaging                      23.1       pyhd8ed1ab_0
pandas                         1.5.3      py39hecff1ad_0
pandocfilters                  1.5.0      pyhd8ed1ab_0
parso                          0.8.3      pyhd8ed1ab_0
pexpect                        4.8.0      pyh1a96a4e_2
pickleshare                    0.7.5      py_1003   
pillow                         9.5.0      py39h77c96bc_0
pip                            23.1.2     pyhd8ed1ab_0
platformdirs                   3.5.0      pyhd8ed1ab_0
pluggy                         1.0.0      pyhd8ed1ab_5
prometheus_client              0.16.0     pyhd8ed1ab_0
prompt-toolkit                 3.0.38     pyha770c72_0
prompt_toolkit                 3.0.38     hd8ed1ab_0
psutil                         5.9.5      py39ha30fb19_0
ptyprocess                     0.7.0      pyhd3deb0d_0
pure_eval                      0.2.2      pyhd8ed1ab_0
pycosat                        0.6.4      py39ha30fb19_1
pycparser                      2.21       pyhd8ed1ab_0
pygments                       2.15.1     pyhd8ed1ab_0
pyobjc-core                    9.1.1      py39h0504f80_0
pyobjc-framework-cocoa         9.1.1      py39h0504f80_0
pyopenssl                      23.1.1     pyhd8ed1ab_0
pyparsing                      3.0.9      pyhd8ed1ab_0
pyrsistent                     0.19.3     py39ha30fb19_0
pysocks                        1.7.1      pyha2e5f31_6
python                         3.9.12     h1cc4136_1_cpython
python-dateutil                2.8.2      pyhd8ed1ab_0
python-fastjsonschema          2.16.3     pyhd8ed1ab_0
python.app                     3          py39hca72f7f_0
pytz                           2023.3     pyhd8ed1ab_0
pyyaml                         6.0        py39ha30fb19_5
pyzmq                          25.0.2     py39hed8f129_0
readline                       8.2        h9e318b2_1
requests                       2.29.0     pyhd8ed1ab_0
ruamel.yaml                    0.17.21    py39ha30fb19_3
ruamel.yaml.clib               0.2.7      py39ha30fb19_1
send2trash                     1.8.2      pyhd1c38e8_0
setuptools                     67.7.2     pyhd8ed1ab_0
six                            1.16.0     pyh6c4a22f_0
sniffio                        1.3.0      pyhd8ed1ab_0
snowballstemmer                2.2.0      pyhd8ed1ab_0
soupsieve                      2.3.2.post1 pyhd8ed1ab_0
sphinx                         4.4.0      pyhd3eb1b0_0
sphinxcontrib-applehelp        1.0.4      pyhd8ed1ab_0
sphinxcontrib-devhelp          1.0.2      py_0      
sphinxcontrib-htmlhelp         2.0.1      pyhd8ed1ab_0
sphinxcontrib-jsmath           1.0.1      py_0      
sphinxcontrib-qthelp           1.0.3      py_0      
sphinxcontrib-serializinghtml  1.1.5      pyhd8ed1ab_2
sqlite                         3.40.0     h9ae0607_1
stack_data                     0.6.2      pyhd8ed1ab_0
terminado                      0.17.1     pyhd1c38e8_0
tinycss2                       1.2.1      pyhd8ed1ab_0
tk                             8.6.12     h5dbffcc_0
tomli                          2.0.1      pyhd8ed1ab_0
toolz                          0.12.0     pyhd8ed1ab_0
tornado                        6.3        py39ha30fb19_0
tqdm                           4.65.0     pyhd8ed1ab_1
traitlets                      5.9.0      pyhd8ed1ab_0
typing-extensions              4.5.0      hd8ed1ab_0
typing_extensions              4.5.0      pyha770c72_0
tzdata                         2023c      h71feb2d_0
urllib3                        1.26.15    pyhd8ed1ab_0
wcwidth                        0.2.6      pyhd8ed1ab_0
webencodings                   0.5.1      py_1      
websocket-client               1.5.1      pyhd8ed1ab_0
wheel                          0.40.0     pyhd8ed1ab_0
widgetsnbextension             4.0.3      pyhd8ed1ab_0
xz                             5.2.6      h775f41a_0
yaml                           0.2.5      h0d85af4_2
zeromq                         4.3.4      he49afe7_1
zipp                           3.15.0     pyhd8ed1ab_0
zlib                           1.2.13     hfd90126_4
zstandard                      0.19.0     py39h5bcbcff_1
zstd                           1.5.2      hbc0c0cd_6

Can anyone help me with this, please?

i don’t use macos nor conda, but as far as i understand the problem, you can only hope this gets fixed in conda forge dependencies.

in the meantime an alternative would be to try to install jupyterlab via pip install jupyterlab

See https://github.com/conda-forge/jupyterlab-feedstock/issues/378

You can recover a working environment with last jupyterlab version by pinning libffi to 3.3.

micromamba create -f https://prefix.dev/envs/marcbernot/mojave/conda-lock.yml -n mojave
or
conda create -n testmojave python=3.9 libffi=3.3 notebook jupyterlab.
See more details here.

I have same problem…

ISSUE segmentation fault

SYSTEM Mac Mojave 10.14

Conclude some version does not support Mojave 10.14; I cannot upgrade above 10.14
likely conda itself since I have been updating it; can I revert to an older conda?

Goal create an env; jupyterlab pandas scikit-learn matplotlib -with dependancies like python,
numpy, etc

SUMMARY
I created many envs (in order of occurance as follows), then try to launch jupyterlab:
new1 install jupyterlab pandas scikit-learn matplotlib
#> 5959 segmentation fault
#> 5818 segmentation fault
#> 6019 segmentation fault (debug)
test install jupyterlab=3.6.6 pandas scikit-learn matplotlib
#> 2389 segmentation fault
#> 2443 segmentation fault (debug)
test2 jupyterlab=3.5.3 pandas scikit-learn matplotlib
#> command not found: jupyterlab
#> 4165 segmentation fault (debug)
test3 jupyterlab=3.5.3 python=3.11.0 scikit-learn matplotlib
#> 5080 segmentation fault
#> 5124 segmentation fault (debug)

datails below:

test3 jupyterlab=3.5.3 python=3.11.0 scikit-learn matplotlib

jupyterlab 3.5.3
numpy 1.26.2
pandas 2.1.4
python 3.11.0

❯ jupyterlab #> 5080 segmentation fault
❯ jupyter lab --debug #> 5124 segmentation fault

test2 jupyterlab=3.5.3 pandas scikit-learn matplotlib FAIL
install jupyterlab=3.5.3 pandas scikit-learn matplotlib
jupyterlab=3.5.3
matplotlib-3.8.2
numpy-1.26.2
pandas-2.1.4
scikit-learn-1.3.2
scipy-1.11.4
python 3.12

❯ jupyterlab #> command not found: jupyterlab
❯ jupyter lab --debug #> 4165 segmentation fault

test jupyterlab=3.6.6 pandas scikit-learn matplotlib FAIL
looks like this installed a lot of new packages; I wrongly assumed it would instal packages from the same jupyterlab 3.6.6 ‘era’
❯ conda install jupyterlab=3.6.6 pandas scikit-learn matplotlib
❯ conda list # to see pkgs installed
INSTALLED SUM; main packages
jupyterlab 3.6.6
pandas 2.1.4
numpy-1.26.2
python-3.11.7
matplotlib 3.8.2
scikit-learn-1.3.2
scipy-1.11.4

❯ jupyter lab #> 2389 segmentation fault :heavy_multiplication_x:
❯ jupyter lab --debug #> 2443 segmentation fault

new1 install jupyterlab pandas scikit-learn matplotlib
#> 5959 segmentation fault
#> 5818 segmentation fault
#> 6019 segmentation fault (debug)
no longer have the doc for this since I deleted it