Install issue.

[binjiaqm]

In file included from det3d/ops/pointnet2/src/interpolate.cpp:7:
det3d/ops/pointnet2/src/interpolate.cpp: In function ‘std::vectorat::Tensor three_nn(at::Tensor, at::Tensor)’:
det3d/ops/pointnet2/src/utils.h:17:5: error: ‘TORCH_CHECK’ was not declared in this scope

pytorch version 1.1
python 3.6
cuda 11.4

[Yuzx3]

AT_CHECK is deprecated in torch 1.1

[ragini9m]

use torch 1.6