ubuntu16.04使用gpu.hpp使用问题

问题：ros工程中添加头文件 #include"opencv2/gpu/gpu.hpp"  ，catkin_make失败：

报错：[ 14%] Built target segnet_lib
[ 21%] Building CXX object pa_stitching/CMakeFiles/pa_stitching_node.dir/src/main.cpp.o
[ 78%] Built target densecrf
[ 92%] Built target stitching_node
In file included from /home/wds/catkin_ws/src/pa_stitching/include/Configure.h:12:0,
                 from /home/wds/catkin_ws/src/pa_stitching/src/main.cpp:2:
/usr/local/include/opencv2/gpu/gpu.hpp:432:29: error: ‘vector’ does not name a type
 CV_EXPORTS void merge(const vector& src, GpuMat& dst, Stream& stream = 
                             ^
/usr/local/include/opencv2/gpu/gpu.hpp:432:35: error: expected ‘,’ or ‘...’ before ‘<’ token
 CV_EXPORTS void merge(const vector& src, GpuMat& dst, Stream& stream = 
                                   ^
/usr/local/include/opencv2/gpu/gpu.hpp:438:42: error: ‘vector’ has not been declared
 CV_EXPORTS void split(const GpuMat& src, vector& dst, Stream& stream = 
                                          ^
/usr/local/include/opencv2/gpu/gpu.hpp:438:48: error: expected ‘,’ or ‘...’ before ‘<’ token
 CV_EXPORTS void split(const GpuMat& src, vector& dst, Stream& stream = 
                                                ^
/usr/local/include/opencv2/gpu/gpu.hpp:1265:4: error: ‘vector’ does not name a type
    vector locations;
    ^
/usr/local/include/opencv2/gpu/gpu.hpp:1266:4: error: ‘vector’ does not name a type
    vector confidences;
    ^
/usr/local/include/opencv2/gpu/gpu.hpp:1267:4: error: ‘vector’ does not name a type
    vector part_scores[4];
    ^
/usr/local/include/opencv2/gpu/gpu.hpp:1285:31: error: ‘vector’ does not name a type
     void setSVMDetector(const vector& detector);
                               ^
/usr/local/include/opencv2/gpu/gpu.hpp:1285:37: error: expected ‘,’ or ‘...’ before ‘<’ token
     void setSVMDetector(const vector& detector);
                                     ^
/usr/local/include/opencv2/gpu/gpu.hpp:1287:12: error: ‘vector’ does not name a type
     static vector getDefaultPeopleDetector();
            ^
/usr/local/include/opencv2/gpu/gpu.hpp:1288:12: error: ‘vector’ does not name a type
     static vector getPeopleDetector48x96();
            ^
/usr/local/include/opencv2/gpu/gpu.hpp:1289:12: error: ‘vector’ does not name a type
     static vector getPeopleDetector64x128();
            ^
/usr/local/include/opencv2/gpu/gpu.hpp:1291:36: error: ‘vector’ has not been declared
     void detect(const GpuMat& img, vector& found_locations,
                                    ^
/usr/local/include/opencv2/gpu/gpu.hpp:1291:42: error: expected ‘,’ or ‘...’ before ‘<’ token
     void detect(const GpuMat& img, vector& found_locations,
                                          ^
/usr/local/include/opencv2/gpu/gpu.hpp:1295:46: error: ‘vector’ has not been declared
     void detectMultiScale(const GpuMat& img, vector& found_locations,
                                              ^
/usr/local/include/opencv2/gpu/gpu.hpp:1295:52: error: expected ‘,’ or ‘...’ before ‘<’ token
     void detectMultiScale(const GpuMat& img, vector& found_locations,
                                                    ^
/usr/local/include/opencv2/gpu/gpu.hpp:1300:47: error: ‘vector’ has not been declared
     void computeConfidence(const GpuMat& img, vector& hits, double hit_t
                                               ^
/usr/local/include/opencv2/gpu/gpu.hpp:1300:53: error: expected ‘,’ or ‘...’ before ‘<’ token
     void computeConfidence(const GpuMat& img, vector& hits, double hit_t
                                                     ^
/usr/local/include/opencv2/gpu/gpu.hpp:1303:57: error: ‘vector’ has not been declared
     void computeConfidenceMultiScale(const GpuMat& img, vector& found_loc
                                                         ^
/usr/local/include/opencv2/gpu/gpu.hpp:1303:63: error: expected ‘,’ or ‘...’ before ‘<’ token
     void computeConfidenceMultiScale(const GpuMat& img, vector& found_loc
                                                               ^
/usr/local/include/opencv2/gpu/gpu.hpp:1835:5: error: ‘vector’ does not name a type
     vector prevPyr_;
     ^
/usr/local/include/opencv2/gpu/gpu.hpp:1836:5: error: ‘vector’ does not name a type
     vector nextPyr_;
     ^
/usr/local/include/opencv2/gpu/gpu.hpp:1838:5: error: ‘vector’ does not name a type
     vector buf_;
     ^
/usr/local/include/opencv2/gpu/gpu.hpp:1839:5: error: ‘vector’ does not name a type
     vector unused;
     ^
pa_stitching/CMakeFiles/pa_stitching_node.dir/build.make:62: recipe for target 'pa_stitching/CMakeFiles/pa_stitching_node.dir/src/main.cpp.o' failed
make[2]: *** [pa_stitching/CMakeFiles/pa_stitching_node.dir/src/main.cpp.o] Error 1
CMakeFiles/Makefile2:353: recipe for target 'pa_stitching/CMakeFiles/pa_stitching_node.dir/all' failed
make[1]: *** [pa_stitching/CMakeFiles/pa_stitching_node.dir/all] Error 2
Makefile:138: recipe for target 'all' failed
make: *** [all] Error 2
Invoking "make -j8 -l8" failed

解决方法：在#include"opencv2/gpu/gpu.hpp"上加入using namespace std;即可