Undefined reference to Vector2mxnet


Does anyone have any idea where Vector2mxnet is located or indeed if it is a piece of material code or just a ghost class?

incubator-mxnet/plugin/caffe/./caffe_op-inl.h:311:37: error: ‘mxnet::op::caffe::Vector2mxnet’ has not been declared
  311 |       mxnet::TShape tshape = caffe::Vector2mxnet::TShape(blob->shape());
      |                                     ^~~~~~~~~~~~
make[2]: *** [CMakeFiles/mxnet_static.dir/build.make:4002: CMakeFiles/mxnet_static.dir/plugin/caffe/caffe_op.cc.o] Error 1

I am trying to compile the git version of mxnet (from https://github.com/apache/incubator-mxnet) with CAFFE support on linux with latest versions of all requirements.

Any ideas?