# Problems with Psi4 installation

Lotto
TL;DR Summary
I can't install Psi4 on my Windows 10.

Eventually, I overcame the problem by using Command Prompt and then the installation started. But at its end, this occured:

I know it can be caused by a name of destination folder, but I tried everything I could and the problem persists. I don't have any Python or something like that on my PC. When I chose "Install for all users", then it didn't work at all. I tried to download the .exe file again, even an older version, but it was in vain. Do you have any ideas how to fix the problem?

Mentor
I think you need to clean out all references to anaconda and redownload the package. Cleaning up anaconda install, you may need to search for how to do that as it may have installed registry keys and in other directories besides its own.

I am a little concerned that the exe is malware so you should do a google search to see if others have run across a similar problem.

Lotto
I think you need to clean out all references to anaconda and redownload the package. Cleaning up anaconda install, you may need to search for how to do that as it may have installed registry keys and in other directories besides its own.

I am a little concerned that the exe is malware so you should do a google search to see if others have run across a similar problem.
Well, I don't think it is a malware, since it is a file from the official Psi4 website. Moreover, when I ran an antivirus test, nothing was found.

But it is true that my antivirus programme warns me against this programme, but that is because it is from an unknown source.

Mentor
Lotto
Heres the Psi4 install instructions for windows and it says to install anaconda first.

https://psicode.org/posts/psi4education_setup/

Is this what you are trying to do?
I tried that when I had Anaconda on my PC, but the result was the same. Now I have Anaconda removed (I removed everything that had something to do with it).

Lotto
Heres the Psi4 install instructions for windows and it says to install anaconda first.

https://psicode.org/posts/psi4education_setup/

Is this what you are trying to do?
I installed Anaconda3 and used this command: conda install psi4 python=3.8 -c psi4 -c conda-forge (that is from here https://psicode.org/installs/v17/). I suppose that Psi4 should install now, but it doesn't completely work, since this occured:

So it started to install, but then this error happened. I had had similar SSL error before, but that should be already fixed. But this error I can't fix. What should I do?

Last edited:
Mentor
I don't think I can be of much help here, but for the sake of others who might be able to help, the screen shot you posted is too small to read. It would be helpful if you could copy the text of the error messages, and then post that stuff directly in your post, rather than as an image.

Wrichik Basu and jedishrfu
Gold Member
I have recently had several sites that will not connect due to SSL incompatibility. One of those is an e-mail account that requires advertisement display from a 3rd party before allowing access.

There must be a "New-And-Improved" SSL level that some sites insist on using exclusively.

Anyone have a solution?

Lotto
I don't think I can be of much help here, but for the sake of others who might be able to help, the screen shot you posted is too small to read. It would be helpful if you could copy the text of the error messages, and then post that stuff directly in your post, rather than as an image.
Ok, so this is the whole report:
Code:
(base) C:\Users\Beda>conda activate p4env

(p4env) C:\Users\Beda>conda config --set ssl_verify false

(p4env) C:\Users\Beda> conda install psi4 python=3.8 -c psi4 -c conda-forge
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Solving environment: done

==> WARNING: A newer version of conda exists. <==
current version: 22.9.0

\$ conda update -n base -c defaults conda

WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libint2-2.6.0-h2e52968_4.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libxc-5.2.3-py38h91455d4_2.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)

## Package Plan ##

environment location: C:\Users\Beda\anaconda3\envs\p4env

- psi4
- python=3.8

package                    |            build
---------------------------|-----------------
libint2-2.6.0              |       h2e52968_4        69.1 MB  psi4
libxc-5.2.3                |   py38h91455d4_2        30.4 MB  conda-forge
mkl-2019.1                 |              144        99.8 MB
psi4-1.7+6ce35a5           |           py38_0        67.0 MB  psi4
python-3.8.15              |h4de0772_1_cpython        15.5 MB  conda-forge
------------------------------------------------------------
Total:       281.9 MB

The following NEW packages will be INSTALLED:

attrs              conda-forge/noarch::attrs-22.2.0-pyh71513ae_0 None
bzip2              conda-forge/win-64::bzip2-1.0.8-h8ffe710_4 None
ca-certificates    conda-forge/win-64::ca-certificates-2022.12.7-h5b45459_0 None
cffi               conda-forge/win-64::cffi-1.15.1-py38h57701bc_3 None
colorama           conda-forge/noarch::colorama-0.4.6-pyhd8ed1ab_0 None
dftd3-python       conda-forge/win-64::dftd3-python-0.6.0-py38heb50f4f_1 None
exceptiongroup     conda-forge/noarch::exceptiongroup-1.1.0-pyhd8ed1ab_0 None
gau2grid           conda-forge/win-64::gau2grid-2.0.7-hcb41399_1 None
gcp-correction     conda-forge/win-64::gcp-correction-2.3.1-ha368592_2 None
importlib_resourc~ conda-forge/noarch::importlib_resources-5.10.2-pyhd8ed1ab_0 None
iniconfig          conda-forge/noarch::iniconfig-2.0.0-pyhd8ed1ab_0 None
intel-openmp       pkgs/main/win-64::intel-openmp-2019.1-144 None
libblas            conda-forge/win-64::libblas-3.8.0-8_mkl None
libcblas           conda-forge/win-64::libcblas-3.8.0-8_mkl None
libffi             conda-forge/win-64::libffi-3.4.2-h8ffe710_5 None
libint2            psi4/win-64::libint2-2.6.0-h2e52968_4 None
liblapack          conda-forge/win-64::liblapack-3.8.0-8_mkl None
libsqlite          conda-forge/win-64::libsqlite-3.40.0-hcfcfb64_0 None
libxc              conda-forge/win-64::libxc-5.2.3-py38h91455d4_2 None
libzlib            conda-forge/win-64::libzlib-1.2.13-hcfcfb64_4 None
m2w64-gcc-libgfor~ conda-forge/win-64::m2w64-gcc-libgfortran-5.3.0-6 None
m2w64-gcc-libs     conda-forge/win-64::m2w64-gcc-libs-5.3.0-7 None
m2w64-gcc-libs-co~ conda-forge/win-64::m2w64-gcc-libs-core-5.3.0-7 None
m2w64-gmp          conda-forge/win-64::m2w64-gmp-6.1.0-2 None
mctc-lib           conda-forge/win-64::mctc-lib-0.3.1-hd5c7e75_0 None
mkl                pkgs/main/win-64::mkl-2019.1-144 None
msgpack-python     conda-forge/win-64::msgpack-python-1.0.4-py38hb1fd069_1 None
msys2-conda-epoch  conda-forge/win-64::msys2-conda-epoch-20160418-1 None
networkx           conda-forge/noarch::networkx-3.0-pyhd8ed1ab_0 None
numpy              conda-forge/win-64::numpy-1.22.4-py38h1d2777f_0 None
openssl            conda-forge/win-64::eek:penssl-3.0.7-hcfcfb64_2 None
optking            psi4/noarch::eek:ptking-0.2.1-pyhbc12335_1 None
packaging          conda-forge/noarch::packaging-23.0-pyhd8ed1ab_0 None
pint               psi4/noarch::pint-0.17-pyhd8ed1ab_0 None
pip                conda-forge/noarch::pip-22.3.1-pyhd8ed1ab_0 None
pluggy             conda-forge/noarch::pluggy-1.0.0-pyhd8ed1ab_5 None
psi4               psi4/win-64::psi4-1.7+6ce35a5-py38_0 None
psutil             conda-forge/win-64::psutil-5.9.4-py38h91455d4_0 None
py-cpuinfo         conda-forge/noarch::py-cpuinfo-9.0.0-pyhd8ed1ab_0 None
pycparser          conda-forge/noarch::pycparser-2.21-pyhd8ed1ab_0 None
pydantic           conda-forge/win-64::pydantic-1.10.4-py38h91455d4_1 None
pytest             conda-forge/noarch::pytest-7.2.1-pyhd8ed1ab_0 None
python             conda-forge/win-64::python-3.8.15-h4de0772_1_cpython None
python_abi         conda-forge/win-64::python_abi-3.8-3_cp38 None
pyyaml             conda-forge/win-64::pyyaml-6.0-py38h91455d4_5 None
qcelemental        psi4/noarch::qcelemental-0.25.1-pyhd8ed1ab_1 None
qcengine           psi4/noarch::qcengine-0.26.0-pyhd8ed1ab_0 None
scipy              conda-forge/win-64::scipy-1.8.1-py38h9bf8e03_0 None
setuptools         conda-forge/noarch::setuptools-66.1.1-pyhd8ed1ab_0 None
simple-dftd3       conda-forge/win-64::simple-dftd3-0.6.0-hd5c7e75_0 None
tk                 conda-forge/win-64::tk-8.6.12-h8ffe710_0 None
toml-f             conda-forge/win-64::toml-f-0.2.3-hd5c7e75_0 None
tomli              conda-forge/noarch::tomli-2.0.1-pyhd8ed1ab_0 None
typing-extensions  conda-forge/noarch::typing-extensions-4.4.0-hd8ed1ab_0 None
typing_extensions  conda-forge/noarch::typing_extensions-4.4.0-pyha770c72_0 None
ucrt               conda-forge/win-64::ucrt-10.0.22621.0-h57928b3_0 None
vc                 conda-forge/win-64::vc-14.3-hb6edc58_10 None
vs2015_runtime     conda-forge/win-64::vs2015_runtime-14.34.31931-h4c5c07a_10 None
wheel              conda-forge/noarch::wheel-0.38.4-pyhd8ed1ab_0 None
xz                 conda-forge/win-64::xz-5.2.6-h8d14728_0 None
yaml               conda-forge/win-64::yaml-0.2.5-h8ffe710_2 None
zipp               conda-forge/noarch::zipp-3.12.0-pyhd8ed1ab_0 None

Proceed ([y]/n)? y

mkl-2019.1           | 99.8 MB   | ################################################################################################################################################################################################# | 100%
psi4-1.7+6ce35a5     | 67.0 MB   |                                                                                                                                                                                                   |   0% WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0\Lib\share\psi4\basis\dgauss-dzvp-autoabs.gbs.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0\Lib\share\psi4\basis\dgauss-dzvp-autoabs.gbs.  Please remove this file manually (you may need to reboot to free file handles)
psi4-1.7+6ce35a5     | 67.0 MB   |                                                                                                                                                                                                   |   0%
libint2-2.6.0        | 69.1 MB   |                                                                                                                                                                                                   |   0% WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libint2-2.6.0-h2e52968_4\lib\int2-cxx.lib.  Please remove this file manually (you may need to reboot to free file handles)
libint2-2.6.0        | 69.1 MB   |                                                                                                                                                                                                   |   0%
python-3.8.15        | 15.5 MB   | ####################################################8                                                                                                                                             |  27%
libxc-5.2.3          | 30.4 MB   | ##############################################################################7                                                                                                                   |  41% WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libxc-5.2.3-py38h91455d4_2\Library\bin\xc.dll.  Please remove this file manually (you may need to reboot to free file handles)
libxc-5.2.3          | 30.4 MB   | #################################################################################                                                                                                                 |  42%

InvalidArchiveError("Error with archive C:\\Users\\Beda\\anaconda3\\pkgs\\psi4-1.7+6ce35a5-py38_0.tar.bz2.  You probably need to delete and re-download or re-create this file.  Message from libarchive was:\n\nfailed with error: [Errno 13] Permission denied: 'C:\\\\Users\\\\Beda\\\\anaconda3\\\\pkgs\\\\psi4-1.7+6ce35a5-py38_0\\\\Lib\\\\share\\\\psi4\\\\basis\\\\dgauss-dzvp-autoabs.gbs'")
CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

Exception: [SSL: DECRYPTION_FAILED_OR_BAD_RECORD_MAC] decryption failed or bad record mac (_ssl.c:2633)
I deleted that files above, but then it occured again. So what should I do?

Last edited by a moderator:
Lotto
Did you turn off the ssl flag and try it again?
I suppose I did, these were my first three steps:

(base) C:\Users\Beda>conda activate p4env

(p4env) C:\Users\Beda>conda config --set ssl_verify false

(p4env) C:\Users\Beda> conda install psi4 python=3.8 -c psi4 -c conda-forge

Or am I to do it differently?

Mentor
You could use conda to check if its set by listing the environment because it seems the error still occurred during install

Lotto
You could use conda to check if its set by listing the environment because it seems the error still occurred during install
And how to do it? When I do "conda env list" I see only my enviroment with a star.

Mentor
Check your .condarc file. The url link I gave mentions that for setting this flag.

They also mention locating your ssl certificate and the setting the ssl_verify path.

Lotto
Check your .condarc file. The url link I gave mentions that for setting this flag.
In the .condarc file is it ok, I have there ssl_verify false.

They also mention locating your ssl certificate and the setting the ssl_verify path.
I don't know how to do this, where am I to find that ssl certificate?

Homework Helper
Gold Member
I don't think this is anything to do with SSL certificates (not any more, anyway). It is due to the installation process being unable to delete files, probably because they are locked by a crashed process.

Code:
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libint2-2.6.0-h2e52968_4.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libxc-5.2.3-py38h91455d4_2.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0.tar.bz2.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0\Lib\share\psi4\basis\dgauss-dzvp-autoabs.gbs.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\psi4-1.7+6ce35a5-py38_0\Lib\share\psi4\basis\dgauss-dzvp-autoabs.gbs.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libint2-2.6.0-h2e52968_4\lib\int2-cxx.lib.  Please remove this file manually (you may need to reboot to free file handles)
WARNING conda.gateways.disk.delete:unlink_or_rename_to_trash(143): Could not remove or rename C:\Users\Beda\anaconda3\pkgs\libxc-5.2.3-py38h91455d4_2\Library\bin\xc.dll.  Please remove this file manually (you may need to reboot to free file handles)
InvalidArchiveError("Error with archive C:\\Users\\Beda\\anaconda3\\pkgs\\psi4-1.7+6ce35a5-py38_0.tar.bz2.  You probably need to delete and re-download or re-create this file.  Message from libarchive was:\n\nfailed with error: [Errno 13] Permission denied: 'C:\\\\Users\\\\Beda\\\\anaconda3\\\\pkgs\\\\psi4-1.7+6ce35a5-py38_0\\\\Lib\\\\share\\\\psi4\\\\basis\\\\dgauss-dzvp-autoabs.gbs'")

In my experience installing Python packages in Windows is a nightmare and I gave up years ago: I do serious Python work in a Linux virtual machine. It may be it works better in WSL but I haven't tried that approach.

I deleted that files above, but then it occured again.
Then show us the error report after "deleting that files above".

jedishrfu
Lotto
I don't think this is anything to do with SSL certificates (not any more, anyway). It is due to the installation process being unable to delete files, probably because they are locked by a crashed process.

Well, unfortunately, that "WARNING" occured only twice, now only this below occures. I installed OpenSSL, checked, that when I open .condarc, I have there "ssl_verify: false". But nothing works. I don't understand it, for the first time, it shows report above, and now it shows this report.

And installation via .exe doesn't work either.
Code:
(p4env) C:\Users\Beda> conda install psi4 python=3.8 -c psi4 -c conda-forge
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Solving environment: done

## Package Plan ##

environment location: C:\Users\Beda\anaconda3\envs\p4env

- psi4
- python=3.8

package                    |            build
---------------------------|-----------------
libcblas-3.8.0             |            8_mkl         3.5 MB  conda-forge
libint2-2.6.0              |       h2e52968_4        69.1 MB  psi4
libxc-5.2.3                |   py38h91455d4_2        30.4 MB  conda-forge
mkl-2019.1                 |              144        99.8 MB
numpy-1.22.4               |   py38h1d2777f_0         6.1 MB  conda-forge
psi4-1.7+6ce35a5           |           py38_0        67.0 MB  psi4
python-3.8.15              |h4de0772_1_cpython        15.5 MB  conda-forge
scipy-1.8.1                |   py38h9bf8e03_0        27.3 MB  conda-forge
------------------------------------------------------------
Total:       318.9 MB

The following NEW packages will be INSTALLED:

attrs              conda-forge/noarch::attrs-22.2.0-pyh71513ae_0
bzip2              conda-forge/win-64::bzip2-1.0.8-h8ffe710_4
ca-certificates    conda-forge/win-64::ca-certificates-2022.12.7-h5b45459_0
cffi               conda-forge/win-64::cffi-1.15.1-py38h57701bc_3
colorama           conda-forge/noarch::colorama-0.4.6-pyhd8ed1ab_0
dftd3-python       conda-forge/win-64::dftd3-python-0.6.0-py38heb50f4f_1
exceptiongroup     conda-forge/noarch::exceptiongroup-1.1.0-pyhd8ed1ab_0
gau2grid           conda-forge/win-64::gau2grid-2.0.7-hcb41399_1
gcp-correction     conda-forge/win-64::gcp-correction-2.3.1-ha368592_2
importlib_resourc~ conda-forge/noarch::importlib_resources-5.10.2-pyhd8ed1ab_0
iniconfig          conda-forge/noarch::iniconfig-2.0.0-pyhd8ed1ab_0
intel-openmp       pkgs/main/win-64::intel-openmp-2019.1-144
libblas            conda-forge/win-64::libblas-3.8.0-8_mkl
libcblas           conda-forge/win-64::libcblas-3.8.0-8_mkl
libffi             conda-forge/win-64::libffi-3.4.2-h8ffe710_5
libint2            psi4/win-64::libint2-2.6.0-h2e52968_4
liblapack          conda-forge/win-64::liblapack-3.8.0-8_mkl
libsqlite          conda-forge/win-64::libsqlite-3.40.0-hcfcfb64_0
libxc              conda-forge/win-64::libxc-5.2.3-py38h91455d4_2
libzlib            conda-forge/win-64::libzlib-1.2.13-hcfcfb64_4
m2w64-gcc-libgfor~ conda-forge/win-64::m2w64-gcc-libgfortran-5.3.0-6
m2w64-gcc-libs     conda-forge/win-64::m2w64-gcc-libs-5.3.0-7
m2w64-gcc-libs-co~ conda-forge/win-64::m2w64-gcc-libs-core-5.3.0-7
m2w64-gmp          conda-forge/win-64::m2w64-gmp-6.1.0-2
mctc-lib           conda-forge/win-64::mctc-lib-0.3.1-hd5c7e75_0
mkl                pkgs/main/win-64::mkl-2019.1-144
msgpack-python     conda-forge/win-64::msgpack-python-1.0.4-py38hb1fd069_1
msys2-conda-epoch  conda-forge/win-64::msys2-conda-epoch-20160418-1
networkx           conda-forge/noarch::networkx-3.0-pyhd8ed1ab_0
numpy              conda-forge/win-64::numpy-1.22.4-py38h1d2777f_0
openssl            conda-forge/win-64::eek:penssl-3.0.7-hcfcfb64_2
optking            psi4/noarch::eek:ptking-0.2.1-pyhbc12335_1
packaging          conda-forge/noarch::packaging-23.0-pyhd8ed1ab_0
pint               psi4/noarch::pint-0.17-pyhd8ed1ab_0
pip                conda-forge/noarch::pip-22.3.1-pyhd8ed1ab_0
pluggy             conda-forge/noarch::pluggy-1.0.0-pyhd8ed1ab_5
psi4               psi4/win-64::psi4-1.7+6ce35a5-py38_0
psutil             conda-forge/win-64::psutil-5.9.4-py38h91455d4_0
py-cpuinfo         conda-forge/noarch::py-cpuinfo-9.0.0-pyhd8ed1ab_0
pycparser          conda-forge/noarch::pycparser-2.21-pyhd8ed1ab_0
pydantic           conda-forge/win-64::pydantic-1.10.4-py38h91455d4_1
pytest             conda-forge/noarch::pytest-7.2.1-pyhd8ed1ab_0
python             conda-forge/win-64::python-3.8.15-h4de0772_1_cpython
python_abi         conda-forge/win-64::python_abi-3.8-3_cp38
pyyaml             conda-forge/win-64::pyyaml-6.0-py38h91455d4_5
qcelemental        psi4/noarch::qcelemental-0.25.1-pyhd8ed1ab_1
qcengine           psi4/noarch::qcengine-0.26.0-pyhd8ed1ab_0
scipy              conda-forge/win-64::scipy-1.8.1-py38h9bf8e03_0
setuptools         conda-forge/noarch::setuptools-66.1.1-pyhd8ed1ab_0
simple-dftd3       conda-forge/win-64::simple-dftd3-0.6.0-hd5c7e75_0
tk                 conda-forge/win-64::tk-8.6.12-h8ffe710_0
toml-f             conda-forge/win-64::toml-f-0.2.3-hd5c7e75_0
tomli              conda-forge/noarch::tomli-2.0.1-pyhd8ed1ab_0
typing-extensions  conda-forge/noarch::typing-extensions-4.4.0-hd8ed1ab_0
typing_extensions  conda-forge/noarch::typing_extensions-4.4.0-pyha770c72_0
ucrt               conda-forge/win-64::ucrt-10.0.22621.0-h57928b3_0
vc                 conda-forge/win-64::vc-14.3-hb6edc58_10
vs2015_runtime     conda-forge/win-64::vs2015_runtime-14.34.31931-h4c5c07a_10
wheel              conda-forge/noarch::wheel-0.38.4-pyhd8ed1ab_0
xz                 conda-forge/win-64::xz-5.2.6-h8d14728_0
yaml               conda-forge/win-64::yaml-0.2.5-h8ffe710_2
zipp               conda-forge/noarch::zipp-3.12.0-pyhd8ed1ab_0

Proceed ([y]/n)? y

CancelledError()
CancelledError()
CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

CondaSSLError: Encountered an SSL error. Most likely a certificate verification issue.

Exception: [SSL: DECRYPTION_FAILED_OR_BAD_RECORD_MAC] decryption failed or bad record mac (_ssl.c:2633)

Last edited by a moderator:
Gold Member
2022 Award
@Lotto You really need to use code tags while posting output from the terminal. To do this, click on the icon below:

paste your code, select a programming language (in this case, none), and click on Continue. Alternatively, append [CODE]...[/CODE] tags before and at the end of the code block section.

Mentor
@Lotto You really need to use code tags while posting output from the terminal.
Yes. @Lotto -- the Mentors have been inserting code tags for you in your longer posts in this thread, but please do it for yourself from now on using the tip from @Wrichik Basu

Thank you.

Wrichik Basu and jedishrfu
Lotto
This is really weird. Every day occures different reports
Code:
(p4env) C:\Users\Beda> conda install psi4 python=3.8 -c psi4
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: failed with repodata from current_repodata.json, will retry with next repodata source.
Solving environment: failed with initial frozen solve. Retrying with flexible solve.
Solving environment: -
Found conflicts! Looking for incompatible packages.
This can take several minutes.  Press CTRL-C to abort.
failed

UnsatisfiableError: The following specifications were found to be incompatible with each other:

Output in format: Requested package -> Available versions

Package python conflicts for:
python=3.8
psi4 -> msgpack-python -> python[version='>=2.7,<2.8.0a0|>=3.10,<3.11.0a0|>=3.7,<3.8.0a0|>=3.8,<3.9.0a0|>=3.9,<3.10.0a0|>=3.6,<3.7.0a0|>=3.5,<3.6.0a0|>=3.8|>=3.7|>=3.6|>=3.5|>=3.6.0']
psi4 -> python=3.8

Mentor
It looks like the python module msgpack-python you want to load can't work with python 3.8

Lotto
Ok, I tried that on my father's notebook and there it works, so I give up installing Psi4 on my PC, it seems to be a hard problem. But I can use the program there at least.

Mentor
When you get a version mismatch you can either upgrade or downgrade things. In this case, it looks like you may need to downgrade your python to get it to work or install python 3.7 along with python 3.8 if possible.

I recall conda may allow multiple python environments.