detectron2_repo/detectron2/layers/csrc/vision.o: file not recognized: file format not recognized

[FantDing]

I have trouble installing detectron2

To Reproduce

1. install requirements as mentioned in 'INSTALL.md'
2. git clone https://github.com/facebookresearch/detectron2 detectron2_repo
3. cd detectron2_repo
4. python setup.py build develop

Expected behavior

Succeed in installing.
But I met errors, said "......./detectron2_repo/detectron2/layers/csrc/vision.o: file not recognized: file format not recognized"

Environment

• manjaro 18.1.2
• g++ (GCC) 9.2.0
• torch 1.3
• python 3.6.9

[ppwwyyxx]

Please post full error logs and environment information following the issue template.

[kHarshit]

@FantDing You need to downgrade binutils to 2.30-5. Check #23

[ppwwyyxx]

Seems a duplicate. Thanks for flagging this

[FantDing]

Thank you !!! I solved it

[david-morris]

Hi, am commenting on this because binutils 2.30 has been expired from the Arch Linux Archive. I'm looking for another workaround, ideally one that does not require downgrading binutils system-wide.

Maybe this issue needs to be reopened?

[ppwwyyxx]

Either downgrade or upgrade, to avoid a version of binutils that has bugs.

I don't think it needs to be reopened since it's unrelated to detectron2 and there isn't much we can do