Issue when try to install cadquery with conda

[AugustinErnoult]

I have troubles to install cadquery with conda. (OS: ubuntu)

After having install a clean Miniconda version, I installed some basic librairy (numpy, scipy, matplotlib). When I try to install cadquery I get this message

$ conda install cadquery::cadquery       
2 channel Terms of Service accepted
Channels:
 - defaults
 - cadquery
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: failed

LibMambaUnsatisfiableError: Encountered problems while solving:
  - nothing provides oce 0.18.* needed by cadquery-2.0RC0-py3.6

Could not solve for environment specs
The following packages are incompatible
\u2514\u2500 cadquery =* * is not installable because there are no viable options
   \u251c\u2500 cadquery [2.0|2.0RC0|2.0RC1|2.0RC2] would require
   \u2502  \u2514\u2500 oce =0.18 *, which does not exist (perhaps a missing channel);
   \u251c\u2500 cadquery [2.0.1|2.1|2.1RC1] would require
   \u2502  \u2514\u2500 ezdxf =* *, which does not exist (perhaps a missing channel);
   \u2514\u2500 cadquery [2.2.0|2.3.1|...|v2.5.2] would require
      \u2514\u2500 casadi =* *, which does not exist (perhaps a missing channel).

When I try with the conda-forge channel as indicated in the readme, I get

$ conda install -c conda-forge cadquery
2 channel Terms of Service accepted
Channels:
 - conda-forge
 - defaults
Platform: linux-64
Collecting package metadata (repodata.json): done
Solving environment: failed

LibMambaUnsatisfiableError: Encountered problems while solving:
  - nothing provides casadi needed by cadquery-2.2.0-pyhd8ed1ab_0

Could not solve for environment specs
The following packages are incompatible
\u251c\u2500 cadquery =* * is installable with the potential options
\u2502  \u251c\u2500 cadquery [2.2.0|2.3.0|...|2.5.2] would require
\u2502  \u2502  \u2514\u2500 casadi =* *, which does not exist (perhaps a missing channel);
\u2502  \u251c\u2500 cadquery 1.2.0 would require
\u2502  \u2502  \u2514\u2500 python >=3.6,<3.7 *, which can be installed;
\u2502  \u2514\u2500 cadquery [1.2.0|1.2.5] would require
\u2502     \u2514\u2500 freecad =* *, which does not exist (perhaps a missing channel);
\u2514\u2500 pin on python 3.13.* =* * is not installable because it requires
   \u2514\u2500 python =3.13 *, which conflicts with any installable versions previously reported.

Pins seem to be involved in the conflict. Currently pinned specs:
 - python=3.13

[jmwright]

I would install CadQuery first. conda may be pulling the old version because of version conflicts with what you have already installed.

[AugustinErnoult]

I tried without success. There is still this casadi package issue, which is strange as I found this package on the conda-forge...

[jmwright]

You could try pinning the version of CadQuery on the command line to 2.5.2 and see what the conflict is with the latest release. Can you try using mamba? What version of conda do you have installed?

[AugustinErnoult]

Imposing the version of cadquery does not change anything. I installed the last version of miniconda . I see that with this version python 3.13 is automatically installed. Maybe a conflict come from here, but it is not what it is indicated

[adam-urbanczyk]

The documentation mentions miniforge for a reason. Maybe try adding conda-forge to your channels: conda config --add channels conda-forge? Nothing provides casadi does not sound familiar, it is available on the conda-forge channel.

[AugustinErnoult]

I also tried to add the channel without success.
If I'm the only one to have this issue, I will just install cadquery with pip.

[jmwright]

@AugustinErnoult Did you ever try using mamba instead of conda?

[adam-urbanczyk]

I also tried to add the channel without success. If I'm the only one to have this issue, I will just install cadquery with pip.

What does conda repoquery search casadi yield (please paste)? E.g. on my current system I see:

Getting repodata from channels...

conda-forge/noarch                                  22.2MB @   9.3MB/s  2.3s
conda-forge/linux-64                                46.9MB @  12.0MB/s  3.8s
 Name   Version Build                                         Channel     Subdir
───────────────────────────────────────────────────────────────────────────────────
 casadi 3.7.0   py310h2866ee3_2                 (+ 29 builds) conda-forge linux-64
 casadi 3.6.7   py310h2243c55_1                 (+ 29 builds) conda-forge linux-64
 casadi 3.6.6   py310h23aa882_0                 (+  8 builds) conda-forge linux-64
 casadi 3.6.5   py310h60ac289_0                 (+ 26 builds) conda-forge linux-64
 casadi 3.6.4   py310h60ac289_0                 (+  4 builds) conda-forge linux-64
 casadi 3.6.3   py310h40a5e2b_3                 (+ 27 builds) conda-forge linux-64
 casadi 3.6.2   py310h528c296_2                 (+ 11 builds) conda-forge linux-64
 casadi 3.6.0   py310h81ee35b_0                 (+  3 builds) conda-forge linux-64
 casadi 3.5.5   py310h21519b1_17                (+ 88 builds) conda-forge linux-64
 casadi 3.5.4   py36h3cf2a60_0                  (+  2 builds) conda-forge linux-64
 casadi 3.5.3   py36h3cf2a60_0                  (+  2 builds) conda-forge linux-64
 casadi 3.5.2   py36h408b58f_0                  (+  2 builds) conda-forge linux-64
 casadi 3.5.1   py36h408b58f_1                  (+ 16 builds) conda-forge linux-64
 casadi 3.4.5   py27_blas_openblash1522bff_1001 (+ 10 builds) conda-forge linux-64
 casadi 3.4.4   py27_blas_openblas_0            (+  5 builds) conda-forge linux-64
 casadi 3.4.3   py27_blas_openblas_0            (+  2 builds) conda-forge linux-64
 casadi 3.4.2   py27_blas_openblash5e446df_0    (+  2 builds) conda-forge linux-64
 casadi 3.4.1   py27_blas_openblas_0            (+  2 builds) conda-forge linux-64
 casadi 3.4.0   py27_blas_openblas_0            (+  2 builds) conda-forge linux-64
 casadi 3.3.0   py27_blas_openblas_0            (+  2 builds) conda-forge linux-64
 casadi 3.2.2   np112py27_blas_openblas_0       (+  5 builds) conda-forge linux-64
 casadi 3.1.1   np112py27_blas_openblas_0       (+  8 builds) conda-forge linux-64

[AugustinErnoult]

Hi, thanks for this comment. I think it's either a problem with Miniconda or my connection (I'm trying to install all of this on a remote server). On my own computer, I get a similar result to you.

But on the remote server, I get:

(base) ...@...:~$ conda config --get channels
--add channels 'defaults'   # lowest priority
--add channels 'conda-forge'
--add channels 'anaconda'   # highest priority
(base) ...@...:~$ conda repoquery search casadi
Collecting package metadata: done
No entries matching "casadi" found

I will try to solve that from my way (maybe install a full anaconda, etc...).

Thanks again for your help. If I find a solution I will publish it here.