Anaconda Installation issue Windows

Lucas_R · January 30, 2022, 2:39pm

Hi,

When I install the lastest Anacoda on Windows, i receive following error:

ERROR conda.core.link:_execute(699): An error occurred while installing package ‘defaults::qt-5.9.7-vc14h73c81de_0’.
Rolling back transaction: …working… done

LinkError: post-link script failed for package defaults::qt-5.9.7-vc14h73c81de_0
location of failed script: C:\Users\lucas\anaconda3\Scripts.qt-post-link.bat
==> script messages <==

==> script output <==
stdout:
stderr: /F was unexpected at this time.

return code: 255

()

As a result, conda and python files are deleted by installer. I tried to find help on faq websiste as well as on different forums, but i didint find any.

I would be gratefull if you could help me.

Lucas_R · January 30, 2022, 5:21pm

the same story when installing navigator by conda prompt

e.rotteveel · February 1, 2022, 8:10am

Those post/pre link scripts may write some useful information to C:\Users\lucas\anaconda3\.messages.txt. Is there such a file? Whats written there?

Kimberly · February 15, 2022, 10:45pm

We received a similar ticket in Anaconda User Care today (error message is in attached screenshot):

Hi Team,

We had recently purchased license and now while installing anaconda 64 bit latest version, we are getting error which is preventing installation.

Need your urgent help as there is a huge business impact.

My response:

Have you tried the running the suggested command in the error message:

conda clean --packages.

Other commands which may help resolve the issue:

Similar issue is discussed here:

github.com/conda/conda

Error processing line 1 of //anaconda3/lib/python3.7/site-packages/matplotlib-3.1.3-py3.7-nspkg.pth

opened 12:39AM - 24 Apr 20 UTC

closed 08:28PM - 21 Jan 21 UTC

jingyetan

source::community pending::feedback type::installer

**I'm submitting a...** - [ ] bug report - [ ] feature request ## Current Behavior  I updated conda today on my Mac and then this error shows up right after the update, and then showing up all the time when I start every new terminal session. > Error processing line 1 of //anaconda3/lib/python3.7/site-packages/matplotlib-3.1.3-py3.7-nspkg.pth: > > Traceback (most recent call last): > File "//anaconda3/lib/python3.7/site.py", line 168, in addpackage > exec(line) > File "<string>", line 1, in <module> > File "<frozen importlib._bootstrap>", line 580, in module_from_spec > AttributeError: 'NoneType' object has no attribute 'loader' > > Remainder of file ignored ### Steps to Reproduce  ``` conda update -n base conda ``` ## Expected Behavior ## Environment Information <details open><summary><code>`conda info`</code></summary> ``` active environment : base active env location : /opt/anaconda3 shell level : 2 user config file : /Users/jtan32/.condarc populated config files : /Users/jtan32/.condarc conda version : 4.8.3 conda-build version : 3.18.11 python version : 3.7.7.final.0 virtual packages : __osx=10.14.6 base environment : /opt/anaconda3 (writable) channel URLs : https://repo.anaconda.com/pkgs/main/osx-64 https://repo.anaconda.com/pkgs/main/noarch https://repo.anaconda.com/pkgs/r/osx-64 https://repo.anaconda.com/pkgs/r/noarch package cache : /opt/anaconda3/pkgs /Users/jtan32/.conda/pkgs envs directories : /opt/anaconda3/envs /Users/jtan32/.conda/envs platform : osx-64 user-agent : conda/4.8.3 requests/2.23.0 CPython/3.7.7 Darwin/18.7.0 OSX/10.14.6 UID:GID : 461154:1961537676 netrc file : None offline mode : False ``` </details> <details open><summary><code>`conda config --show-sources`</code></summary> ``` ==> /Users/jtan32/.condarc <== ssl_verify: True channels: - defaults ``` </details> <details><summary><code>`conda list --show-channel-urls`</code></summary> ``` # packages in environment at /opt/anaconda3: # # Name Version Build Channel _ipyw_jlab_nb_ext_conf 0.1.0 py37_0 defaults anaconda-clean 1.1.0 py37_1 defaults anaconda-client 1.7.2 py37_0 defaults anaconda-navigator 1.9.12 py37_0 defaults appnope 0.1.0 py37_0 defaults asn1crypto 1.3.0 py37_0 defaults attrs 19.3.0 py_0 defaults backcall 0.1.0 py37_0 defaults backports 1.0 py_2 defaults backports.functools_lru_cache 1.6.1 py_0 defaults backports.tempfile 1.0 py_1 defaults backports.weakref 1.0.post1 py_1 defaults beautifulsoup4 4.9.0 py37_0 defaults blas 1.0 mkl defaults bleach 3.1.4 py_0 defaults bzip2 1.0.8 h1de35cc_0 defaults ca-certificates 2020.1.1 0 defaults certifi 2020.4.5.1 py37_0 defaults cffi 1.14.0 py37hb5b8e2f_0 defaults chardet 3.0.4 py37_1003 defaults click 7.1.1 py_0 defaults clyent 1.2.2 py37_1 defaults conda 4.8.3 py37_0 defaults conda-build 3.18.11 py37_0 defaults conda-env 2.6.0 1 defaults conda-package-handling 1.6.0 py37h1de35cc_0 defaults conda-verify 3.4.2 py_1 defaults cryptography 2.8 py37ha12b0ac_0 defaults cycler 0.10.0 py37_0 defaults dbus 1.13.12 h90a0687_0 defaults decorator 4.4.2 py_0 defaults defusedxml 0.6.0 py_0 defaults entrypoints 0.3 py37_0 defaults expat 2.2.6 h0a44026_0 defaults filelock 3.0.12 py_0 defaults freetype 2.9.1 hb4e5f40_0 defaults future 0.18.2 py37_0 defaults gettext 0.19.8.1 h15daf44_3 defaults glib 2.63.1 hd977a24_0 defaults glob2 0.7 py_0 defaults icu 58.2 h4b95b61_1 defaults idna 2.9 py_1 defaults importlib_metadata 1.5.0 py37_0 defaults intel-openmp 2019.4 233 defaults ipykernel 5.1.4 py37h39e3cac_0 defaults ipython 7.13.0 py37h5ca1d4c_0 defaults ipython_genutils 0.2.0 py37_0 defaults ipywidgets 7.5.1 py_0 defaults jedi 0.16.0 py37_1 defaults jinja2 2.11.1 py_0 defaults jpeg 9b he5867d9_2 defaults json5 0.9.4 py_0 defaults jsonschema 3.2.0 py37_0 defaults jupyter_client 6.1.2 py_0 defaults jupyter_core 4.6.3 py37_0 defaults jupyterlab 1.2.6 pyhf63ae98_0 defaults jupyterlab_server 1.1.0 py_0 defaults kiwisolver 1.1.0 py37h0a44026_0 defaults libarchive 3.3.3 h786848e_5 defaults libcxx 4.0.1 hcfea43d_1 defaults libcxxabi 4.0.1 hcfea43d_1 defaults libedit 3.1.20181209 hb402a30_0 defaults libffi 3.2.1 h0a44026_6 defaults libgfortran 3.0.1 h93005f0_2 defaults libiconv 1.16 h1de35cc_0 defaults liblief 0.9.0 h2a1bed3_2 defaults libpng 1.6.37 ha441bb4_0 defaults libsodium 1.0.16 h3efe00b_0 defaults libtiff 4.1.0 hcb84e12_0 defaults libxml2 2.9.9 hf6e021a_1 defaults lz4-c 1.8.1.2 h1de35cc_0 defaults lzo 2.10 h1de35cc_2 defaults markupsafe 1.1.1 py37h1de35cc_0 defaults matplotlib 3.1.3 py37_0 defaults matplotlib-base 3.1.3 py37h9aa3819_0 defaults mistune 0.8.4 py37h1de35cc_0 defaults mkl 2019.4 233 defaults mkl-service 2.3.0 py37hfbe908c_0 defaults mkl_fft 1.0.15 py37h5e564d8_0 defaults mkl_random 1.1.0 py37ha771720_0 defaults navigator-updater 0.2.1 py37_0 defaults nbconvert 5.6.1 py37_0 defaults nbformat 5.0.4 py_0 defaults ncurses 6.2 h0a44026_0 defaults notebook 6.0.3 py37_0 defaults numpy 1.18.1 py37h7241aed_0 defaults numpy-base 1.18.1 py37h6575580_1 defaults olefile 0.46 py37_0 defaults openssl 1.1.1g h1de35cc_0 defaults pandoc 2.2.3.2 0 defaults pandocfilters 1.4.2 py37_1 defaults parso 0.6.2 py_0 defaults pcre 8.43 h0a44026_0 defaults pexpect 4.8.0 py37_0 defaults pickleshare 0.7.5 py37_0 defaults pillow 7.0.0 py37h4655f20_0 defaults pip 20.0.2 py37_1 defaults pkginfo 1.5.0.1 py37_0 defaults prometheus_client 0.7.1 py_0 defaults prompt-toolkit 3.0.4 py_0 defaults prompt_toolkit 3.0.4 0 defaults psutil 5.7.0 py37h1de35cc_0 defaults ptyprocess 0.6.0 py37_0 defaults py-lief 0.9.0 py37h1413db1_2 defaults pycosat 0.6.3 py37h1de35cc_0 defaults pycparser 2.20 py_0 defaults pygments 2.6.1 py_0 defaults pyopenssl 19.1.0 py37_0 defaults pyparsing 2.4.6 py_0 defaults pyqt 5.9.2 py37h655552a_2 defaults pyrsistent 0.16.0 py37h1de35cc_0 defaults pysocks 1.7.1 py37_0 defaults python 3.7.7 hc70fcce_0_cpython defaults python-dateutil 2.8.1 py_0 defaults python-libarchive-c 2.9 py_0 defaults python.app 2 py37_10 defaults pytz 2019.3 py_0 defaults pyyaml 5.3.1 py37h1de35cc_0 defaults pyzmq 18.1.1 py37h0a44026_0 defaults qt 5.9.7 h468cd18_1 defaults qtpy 1.9.0 py_0 defaults readline 8.0 h1de35cc_0 defaults requests 2.23.0 py37_0 defaults ripgrep 11.0.2 he32d670_0 defaults ruamel_yaml 0.15.87 py37h1de35cc_0 defaults send2trash 1.5.0 py37_0 defaults setuptools 46.1.3 py37_0 defaults sip 4.19.8 py37h0a44026_0 defaults six 1.14.0 py37_0 defaults soupsieve 2.0 py_0 defaults sqlite 3.31.1 h5c1f38d_1 defaults terminado 0.8.3 py37_0 defaults testpath 0.4.4 py_0 defaults tk 8.6.8 ha441bb4_0 defaults tornado 6.0.4 py37h1de35cc_1 defaults tqdm 4.45.0 py_0 defaults traitlets 4.3.3 py37_0 defaults urllib3 1.25.8 py37_0 defaults wcwidth 0.1.9 py_0 defaults webencodings 0.5.1 py37_1 defaults wheel 0.34.2 py37_0 defaults widgetsnbextension 3.5.1 py37_0 defaults xmltodict 0.12.0 py_0 defaults xz 5.2.5 h1de35cc_0 defaults yaml 0.1.7 hc338f04_2 defaults zeromq 4.3.1 h0a44026_3 defaults zipp 2.2.0 py_0 defaults zlib 1.2.11 h1de35cc_3 defaults zstd 1.3.7 h5bba6e5_0 defaults ``` </details>

You can roll back to the previous versions of conda until the resolution of this problem by getting a list of all the versions as:

conda list --revisions
You will find te detailed list of all the changes made with revision number as rev 1 or rev 32 . Roll back to your suitable revision by
conda install --rev revision_number_here