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make: *** [.build_release/src/caffe/layers/online_triplet_loss_layer.o] Error 1

src/caffe/layers/online_triplet_loss_layer.cpp: In member function \u2018virtual void caffe::OnlineTripletLossLayer::Forward_cpu(const std::vector<caffe::Blob>&, const std::vector<caffe::Blob>&)\u2019:
src/caffe/layers/online_triplet_loss_layer.cpp:100:27: error: \u2018>>\u2019 should be \u2018> >\u2019 within a nested template argument list
vector<pair<Dtype, Dtype>> min_max_distances;
^
src/caffe/layers/online_triplet_loss_layer.cpp: In instantiation of \u2018void caffe::OnlineTripletLossLayer::Forward_cpu(const std::vector<caffe::Blob>&, const std::vector<caffe::Blob>&) [with Dtype = float]\u2019:
src/caffe/layers/online_triplet_loss_layer.cpp:287:1: required from here
src/caffe/layers/online_triplet_loss_layer.cpp:70:13: warning: unused variable \u2018dim\u2019 [-Wunused-variable]
const int dim = bottom[0]->count() / num;
^
src/caffe/layers/online_triplet_loss_layer.cpp: In instantiation of \u2018void caffe::OnlineTripletLossLayer::Forward_cpu(const std::vector<caffe::Blob>&, const std::vector<caffe::Blob>&) [with Dtype = double]\u2019:
src/caffe/layers/online_triplet_loss_layer.cpp:287:1: required from here
src/caffe/layers/online_triplet_loss_layer.cpp:70:13: warning: unused variable \u2018dim\u2019 [-Wunused-variable]
Makefile:581: recipe for target '.build_release/src/caffe/layers/online_triplet_loss_layer.o' failed
make: *** [.build_release/src/caffe/layers/online_triplet_loss_layer.o] Error 1