[Solved] Error during build, "pthreadVC3.lib : fatal error LNK1107: invalid or corrupt file"

Building Blender
1

Hello,

I am following instructions here:
https://developer.blender.org/docs/handbook/building_blender/

I am running on Windows 10 and have VS2022, VS2019, and gcc installed.

To build, I am just running make with no arguments.

This causes MSVC2019 to get selected. (Blender prioritizes this over 2022, but I get the same issue with both.)

Building blender with VS2019 for x64 in C:\blender..\build_windows_x64_vc16_Release

I am seeing the following error:

C:\blender\lib\windows_x64\pthreads\lib\pthreadVC3.lib : fatal error LNK1107: invalid or corrupt file: cannot read at 0
x83 [C:\build_windows_x64_vc16_Release\intern\cycles\kernel\zstd_compress.vcxproj]

Subsequently some other failures also occur, but this was the first issue.

Thank you!

2

can you check if C:\blender\lib\windows_x64\pthreads\lib\pthreadVC3.lib exists and what its filesize is?

k:\BlenderGit\blender\lib\windows_x64\pthreads\lib>dir

 Directory of k:\BlenderGit\blender\lib\windows_x64\pthreads\lib

2025-06-03  07:08 AM    <DIR>          .
2025-06-03  07:10 AM    <DIR>          ..
2025-06-03  07:08 AM           193,150 pthreadVC3.lib
               1 File(s)        193,150 bytes
3

Thank you very much for taking the time to help me with this!

In my case the file is much smaller which seems to confirm that it’s corrupt or invalid:

Directory of C:\blender\lib\windows_x64\pthreads\lib

06/03/2025 03:52 PM .
06/03/2025 03:52 PM …
06/03/2025 03:52 PM 131 pthreadVC3.lib
1 File(s) 131 bytes

4

looks like something has gone wrong with git lfs try running git lfs fetch and git lfs pull in your C:\blender\lib\windows_x64 folder

5

This solved the issue for me. Thank you so much!