installation error (cq-editor, Win10)

[Kawayanan K]

Hello,

I have really like cadquery for designing simple bits to 3d-print (https://www.thingiverse.com/kawayanan/designs), and have used v1 within freecad.  I really want to try cq-editor though but cannot get it to install and run.

I hadn't used Anaconda before, so I went with Miniconda (Python 3.8, Win 64 bit).  That seems to work fine, and I followed the cq-editor install instructions (conda install -c cadquery -c conda-forge cq-editor=master).  When I try to run cq-editor (from the Start menu icon), I just get a blank black cq-editor window.  When I try to run from the anaconda shell, I get the following error trace:

(base) PS C:\Users\Me> cq-editor

Traceback (most recent call last):

  File "C:\Users\Me\miniconda3\Scripts\CQ-editor-script.py", line 6, in <module>

    from cq_editor.__main__ import main

  File "C:\Users\Me\miniconda3\lib\site-packages\cq_editor\__main__.py", line 12, in <module>

    from .main_window import MainWindow

  File "C:\Users\Me\miniconda3\lib\site-packages\cq_editor\main_window.py", line 5, in <module>

    import cadquery as cq

  File "C:\Users\Me\miniconda3\lib\site-packages\cadquery\__init__.py", line 2, in <module>

    from .occ_impl.geom import Plane, BoundBox, Vector, Matrix, Location

  File "C:\Users\Me\miniconda3\lib\site-packages\cadquery\occ_impl\geom.py", line 5, in <module>

    from OCP.gp import gp_Vec, gp_Ax1, gp_Ax3, gp_Pnt, gp_Dir, gp_Trsf, gp_GTrsf, gp, gp_XYZ

ImportError: DLL load failed while importing OCP: The specified module could not be found.

In an attempt to get past this, I also followed the cadquery install instructions (conda install -c conda-forge -c cadquery cadquery=master), as well as the OCP install instructions (conda install -c conda-forge -c cadquery ocp).  I assumed the anaconda should get all the dependencies for the cq-editor install, but wanted to make sure.  As far as I can tell, everything installed sucessfully.

I can't find anything on the web about this error, but would like to be able to try cq-editor.  Any suggestions on what I am doing wrong?

Thanks!

Kawayanan

[trayracing]

You're not alone. I updated Anaconda and now I get the same error with cq-editor main.

I'm on python 3.7.9.

[Adam Urbanczyk]

Are you able to identify which DLL is missing (using for example ntldd)?

Otherwise, please please paste the following information

conda list

conda info --all

[Kawayanan K]

I attached the output of conda list and conda info --all.  After that I installed ntldd, but I am not sure how to use it and cannot find instructions.  (sorry, new to this).  If I tried "ntldd cq-editor" I get the following:

(base) C:\Users\Me>ntldd cq-editor

        ADVAPI32.dll => C:\Windows\SYSTEM32\ADVAPI32.dll (0x0000000000620000)

        KERNEL32.dll => C:\Windows\SYSTEM32\KERNEL32.dll (0x00000000006c0000)

        msvcrt.dll => C:\Windows\SYSTEM32\msvcrt.dll (0x00000000006c0000)

        SHELL32.dll => C:\Windows\SYSTEM32\SHELL32.dll (0x0000000001230000)

Thanks.

[trayracing]

I don't know why updating my existing cq-editor env (python 3.7, win10) made cq-editor not run with the same problem as Kawayanan's setup.

So I created a new environment with python 3.8 in conda and did 

conda install -c cadquery -c conda-forge cq-editor=master

That launches CQ-editor just fine!

Looks like conda struggled a bit in the process:

conda install -c cadquery -c conda-forge cq-editor=master

Collecting package metadata (current_repodata.json): done

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.

Collecting package metadata (repodata.json): done

Solving environment: done
...(more normal stuff here)...

I know very little about conda, so I don't know if that's cqe specific, or something amiss in my local conda setup. In any case, I'm unblocked.

[Adam Urbanczyk]

Kawayanan, could you try if this fix works for you too?

[Kawayanan K]

This fix did not work for me.  I started with a fresh install of  python 3.8 in miniconda3 and used the same command to install cq-editor.

I have reinstalled a number of times now using various versions, but haven't found anything that fixes the problem.

I finally gave up on the Windows version and went a more complicated route.  I installed Ubuntu in Win10 using WSL2, and then also installed a X server ( VcXsrv Windows X Server) in order to run linux GUI programs on Win10.  Tee conda and cq-editor installs went smoothly and it runs.  A bit of a strange workaround but I now get to play with cq-editor instead of using FreeCAD.

I'm still interested in running the windows version if anyone figures out what might be going wrong.

Thanks everyone!

[Adam Urbanczyk]

Could you try running this:

ntldd -R %CONDA_PREFIX%\Lib\site-packages\OCP.cp38-win_amd64.pyd

Probably you are missing the visual studio redistributable: https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

[Kawayanan K]

Installing the visual studio  C++ redistributable package worked.  When I ran the ntldd command you gave, there were a lot of dll's not found.  After doing the install, there are still some dll's not found, but many fewer.  cq-editor runs though.

Thank you!