VTK issue with Installation and running of MFiX 25.3

MFiX
1

Please include project files - Main menu/Submit bug report - attach zip file here.

MFiX-25.3-installation-error
MFiX-25.3-installation-error1715×692 102 KB

MFiX-25.1.2
MFiX-25.1.2605×369 43.5 KB

Hello,
I am currently using MFiX 25.1.2 (screenshot attached) and it is working fine.
I am trying to install MFiX 25.3.
It seems to be getting installed but when I am trying to open it is giving the error message a shown in the first screenshot. Seems like something related to Python.
Any idea how to resolve this will be highly appreciated.
I really want to run MFiX 25.3.
I am confused why it is working well for MFiX-25.1.2 but not for 25.3.
I look forward to hearing from you on what needs to be done for this problem and how to resolve this.
Thanks and Best Regards,
Sincerely,
Debashis

2

Can you try this?

Open a terminal window, activate the mfix-25.3 environment, and run the command

conda install qt-main 'vtk=*=*qt*'

Please let us know if that fixes the problem. If it does not, run conda list > conda.txt and attach the conda.txt file here.

Thanks for the report, I hope we can get this sorted out!

– Charles

3

Thank you. I will do that and let you know.
Debashis

4

Message
Message1091×1219 180 KB

conda.txt (17.7 KB)
Dr. Waldman.
I tried the commands you suggested. But still getting the error message.
I have attached the screenshot as well as the conda.txt file for your kind review.
Please let me advice on the next steps.
Thanks, and Best Regards,
Sincerely
Debashis

5

Any update on this ? still having issues related to 25.3
Thanks and Regards
Debashis

6

Hi @basud0817

I’m looking for a solution. Since MFiX 25.3 works on my test Windows system, it’s a little hard to see what’s going wrong on yours. The conda.txt file you attached looks fine - I have the same versions of all packages and I’m not seeing any errors. It would be helpful to know exactly what DLL it’s complaing about. I’m not quite sure how to do that. I’ll try to find more information on debugging this and get back to you when I have a clearer idea of how to proceed.

Sorry for the trouble and thanks for your patience,

– Charles

7

Thank you Dr. Waldman. I will be patient and hope sometime to successfully install MFiX 25.3.

I look forward to hearing from you when you have a clearer idea of how to proceed.

I am currently using MfiX 25.1.2.

Thanks and Best Regards,

Debashis

8

@basud0817
It’s just a guess but perhaps installing the Microsoft VC++ Redistributable Runtime may help:

The MFiX Conda package installs a version of this (vc14_runtime which you can see in the output of conda list), but it’s possible that the VTK library got built using a different version ov MSVC - if so, this is a bug in Conda which we can report.

Please let us know if this solves the problem.

– Charles