Ticket #6110: When running FC 0.19 on Windows 7, it returns errors in the Report window

[GeneFC]

I agree that is a common case but it is not what happens here, FreeCAD works fine with older version of python but not with 3.8. In another thread I had joyas check his path variable and there was no other python version interfering. Python 3.8 supposedly requires a specific update of windows 7 to work correctly, I suspect those who have the error don't have that update. Or their processors don't have some instruction used by FreeCAD.

I do not think it is related to Windows update. I would guess that virtually every W7 user is on SP1, since it has been around for more than 10 years. Almost every other "update" was security-related. The exception might be the dot-net stuff, but I do not know how much FC depends on dot-net.

Yes, there was a problem with processor instructions that do not exist on some older Intel processors (older meaning something like 4 years.) I have two computers on W7, one with the extended instruction set and one without. No problems running the vary latest FC on either.

Gene

[GeneFC]

So do you have your own fork of FC and build without said python links ?

Absolutely plain vanilla.

I clone the FC master with GitHub Desktop, and use that as my source, with zero adjustments or changes. I use the latest Apeltauer LibPack, again totally unchanged. I use plain CMake (currently 3.16.6), and Visual Studio 2019 (automatically updated).

I start completely clean in new folders to prevent any carry-over. No links to anything that is not in the LibPack, other than the standard MS "installable" support files for the compiler.

Always works.

Gene

[adrianinsaval]

I do not think it is related to Windows update. I would guess that virtually every W7 user is on SP1

https://stackoverflow.com/questions/585 ... t-with-sp1
It's not about SP1 or not, also some of these error cases may come from pirated versions of win 7 that are not easy to update.

Yes, there was a problem with processor instructions that do not exist on some older Intel processors (older meaning something like 4 years.) I have two computers on W7, one with the extended instruction set and one without. No problems running the vary latest FC on either.

Yeah those issues were solved, I don't know if there are other instructions that might cause trouble so I mentioned the possibility. If any of the people that have the issue could compile and see if that works it would be nice.

[Joyas]

Finally, I got this error solved, I installed a Windows update (Windows6.1-KB3063858-x64.msu) and it worked. I was very afraid of installing it. I was using a development 0.19 version that worked fine during this time ("if it works, don't fix it"). Now I'm running a development version (0.20) that didn't work previously, I will install the latest version soon.

Thank you very much for your help.