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How to build QtitanSolution for Python?

1 year 4 months ago #7 by Eun-seop, Yu
I copyed xml file to rc\shared\PyQtitanFastInfoset\ folder.
After qmake and nmake, another error occurred.
LINK : fatal error LNK1181: cannot open input file 'release\chartobject_wrapper.obj'

Interestingly, the other *wrapper.obj that originally caused the link error seems to succeed.
So. I repeated qmake and nmake about 10 times.
It seemed like the build was finally complete.
However, I couldn't import the QtitanSolution module in Python.

code
from DevMachines.QtitanBase import WindowTitleBar
output
Traceback (most recent call last):
  File "c:\Qt\Developer Machines\PyQtitanComponents2022.4.0\examples\test.py", line 1, in <module>
    from DevMachines.QtitanBase import WindowTitleBar
ImportError: DLL load failed while importing QtitanBase:  %1 is not a valid Win32 application.

I don't understand why this error occurred.
I will try again after reinstalling visual studio.

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1 year 4 months ago #8 by Developer Machines

So. I repeated qmake and nmake about 10 times.
It seemed like the build was finally complete.


Perhaps there were some conflicts with different build options. It is better to take a clean source project.
I generated a project for the visual studio without any problems and compiled the python-bindings.
See my screenshot:

will try again after reinstalling visual studio.
%1 is not a valid Win32 application.

It is not a good idea to reinstall VS... This error means that you are trying to load 32 bit bindings into 64 bit python.
Most likely, you have not removed the 32-bit bindings that our installer installs in and the python process is trying to load these first. Please remove folder - c:\Users\{USER}\AppData\Roaming\Python\Python310\site-packages\DevMachines

Your 64bit bindings should be here - C:\Users\{USER}\AppData\Local\Programs\Python\Python310\Lib\site-packages\DevMachines\
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The following user(s) said Thank You: Eun-seop, Yu

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1 year 2 months ago #9 by Eun-seop, Yu
I apologize for the delay in responding.

The solution you gave me works fine.
On a 16GB RAM laptop, it still fails several times before succeeding.
On a 32GB RAM desktop, it succeeds once.

Thanks for the help.
And I found MSVC 64bit and Windows Python 3.10 64bit added to the download page today.
Thanks for the quick response, and I'm very happy that I don't have to build the source.

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