.build_release/lib/libcaffe.so：对‘arm_compute::NEDepthConcatenate::configure(std::vector<arm_compute::ITensor*, std::allocator<arm_compute::ITensor*> >, arm_compute::ITensor*)’未定义的引用

[jianghuxinyi]

When I make Caffe-HRT，I encountered the following problems， How can I solve it?
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.build_release/lib/libcaffe.so：对‘arm_compute::NEPoolingLayer::configure(arm_compute::ITensor*, arm_compute::ITensor*, arm_compute::PoolingLayerInfo const&)’未定义的引用
.build_release/lib/libcaffe.so：对‘arm_compute::NEConvolutionLayer::configure(arm_compute::ITensor const*, arm_compute::ITensor const*, arm_compute::ITensor const*, arm_compute::ITensor*, arm_compute::PadStrideInfo const&, arm_compute::WeightsInfo const&)’未定义的引用
.build_release/lib/libcaffe.so：对‘arm_compute::NESoftmaxLayer::NESoftmaxLayer(std::shared_ptr<arm_compute::IMemoryManager>)’未定义的引用
.build_release/lib/libcaffe.so：对‘arm_compute::NEDepthConcatenate::configure(std::vector<arm_compute::ITensor*, std::allocator<arm_compute::ITensor*> >, arm_compute::ITensor*)’未定义的引用
collect2: error: ld returned 1 exit status
Makefile:679: recipe for target '.build_release/tools/caffe.bin' failed
make: *** [.build_release/tools/caffe.bin] Error 1