Python 'not compatible' Blender build error for Windows 11 [Solved]

Building Blender
1

Hi, I’m trying to build Blender using the Building Blender on Windows Guide. I’m not very experienced so I followed the steps exactly through command line. But when I run make update I keep getting this error (see below). There are also three LNK1107 fatal errors in my Build.txt file when I run make. I tried to upload the file here but it seems I don’t have the permission yet. I’ve started from scratch multiple times and I’m just at a loss here :melting_face:

E:\blender-git\blender>make update
No explicit msvc version requested, autodetecting version.
**********************************************************************
** Visual Studio 2022 Developer Command Prompt v17.9.1
** Copyright (c) 2022 Microsoft Corporation
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[vcvarsall.bat] Environment initialized for: 'x64'
Compiler Detection successful, detected VS2022
This version of E:\blender-git\blender\lib\windows_x64\python\311\bin\python.exe is not compatible with the version of Windows you're running. Check your computer's system information and then contact the software publisher.
2

sounds like gif lfs left pointer files rather than the actual binaries you need, can you check the file size of that python binary?

3

The python.exe file is 1KB.

4

yeah thats not right, in your lib/windows_x64 folder, try running git lfs pull followed by git lfs checkout main and see if that corrects the issue.

1 Like
5

I think that did it! I’ll play around in the app and keep an eye out for anything weird but thank you so much!

6

I have the exact same error telling me that blender\lib\windows_x64\python\311\bin\python.exe cannot start due or run due to an incompatibility with 64-bit versions of Windows. I have been following the official guide: Windows - Blender Developer Documentation

I tried running git lfs pull, then git lfs checkout main, but I’m still getting the same error.

What might be the source of the problem?

E:\blender-git\blender>git lfs pull

E:\blender-git\blender>git lfs checkout main

E:\blender-git\blender>make update
No explicit msvc version requested, autodetecting version.
**********************************************************************
** Visual Studio 2022 Developer Command Prompt v17.12.0
** Copyright (c) 2022 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x64'
Compiler Detection successful, detected VS2022

image

7

You ignored an important bit of the guidance i gave

[…] in your lib/windows_x64 folder […]

you ran it in your blender folder.

8 
E:\>cd blender-git\blender\lib\windows_x64

E:\blender-git\blender\lib\windows_x64>git lfs pull
Not in a Git repository.

I’m getting an error saying that the folder is not in a git repo. I’m somewhat new to using git, how do I resolve this issue?

9

It’s hard to say what went wrong here, I’d probably start from scratch and keep explicit notes/logs about all commands you typed and the output it gave.

As is best guess I have is you may have perhaps accidentally ran git init after cloning?

10

I think that I might have. How would that affect the git lfs pull?

11

it resets a bunch of stuff related to the submodules which is… bad…

easiest way to recover is to grab a fresh clone and not do the bad thing

1 Like
12

Could you please a look at this?
I deleted everything in the blender-git folder and cloned the blender git repo like you told me to, but I’m still facing errors: