RuntimeError: SigmoidFocalLoss is not compiled with GPU support

[zehuichen123]

Hi, I am trying to install mmcv-full with cuda10.2 and torch1.6, however, I got this error when running mmdet.

RuntimeError: SigmoidFocalLoss is not compiled with GPU support

Here is some info about my machine:

<Trial 1886566 worker_0> mmdetection $ nvcc -V
nvcc: NVIDIA (R) Cuda compiler driver
Copyright (c) 2005-2019 NVIDIA Corporation
Built on Wed_Oct_23_19:24:38_PDT_2019
Cuda compilation tools, release 10.2, V10.2.89

GPU: V100; torch version: 1.6.0;
I run mmcv-full by the following command and no mmcv is installed before:

[zehuichen123]

Hi, this problem disappeared when I use pip < 20.3 to install mmcv-full. Maybe you can have a look at that. Thanks!

[ycxioooong]

Sorry for the late reply, you may refer to this issue.