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當我使用ndk-build時，我總是得到這個奇怪地指向opencv庫代碼的錯誤。在使用NDK構建時在OpenCV/nonfree/features2d中未定義
這是我得到的錯誤信息：
./obj//armeabi/objs/QRCA/QRCA.o: In function `~SURF`:
/----Path---/../sdk/native/jni/include/opencv2/nonfree/features2d.hpp:107: undefined reference to `vtable for cv::SURF`
/----Path---/../sdk/native/jni/include/opencv2/nonfree/features2d.hpp:107: undefined reference to `VTT for cv::SURF`
./obj/local/armeabi/objs/QRCA/QRCA.o: In function `fmatch(std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::basic_string<char, std::char_traits<char>, std::allocator<char> >):`
/----Path---/jni/QRCA.cpp:28: undefined reference to `cv::SURF::SURF(double, int, int, bool, bool)`
/----Path---/jni/QRCA.cpp:36: undefined reference to `cv::SURF::SURF()`
./obj/local/armeabi/objs/QRCA/QRCA.o: In function `std::vector<cv::KeyPoint, std::allocator<cv::KeyPoint> >::_M_range_check(unsigned int) const:`
~/Downloads/android-ndk-r8b/sources/cxx-stl/gnu-libstdc++/4.6/include/bits/stl_vector.h:780: undefined reference to `vtable for cv::SURF`
~/Downloads/android-ndk-r8b/sources/cxx-stl/gnu-libstdc++/4.6/include/bits/stl_vector.h:780: undefined reference to `VTT for cv::SURF`
這是我的Android.mk：
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
include ../sdk/native/jni/OpenCV.mk
LOCAL_MODULE := QRCA
LOCAL_SRC_FILES := QRCA.cpp
LOCAL_C_INCLUDES += $(LOCAL_PATH)
LOCAL_LDLIBS += -llog -ldl
LOCAL_WHOLE_STATIC_LIBRARIES := gnustl_static
include $(BUILD_SHARED_LIBRARY)
任何建議，非常感謝！
謝謝回答（以便它寫在這裏的同一頁上的問題，人們將不必去其它網站，並通過滾動的意見，找到它，我加入這個答案）。我讀過這篇文章，並且我明白opencv4android中沒有非free包。我想要做的是使用OpenCV本機庫編寫C++代碼，該庫具有非自由包，然後使用NDK爲Android構建。所以我不能這樣做，我可以 –
不，你不能。等待OpenCV的解決方案。 – ArtemStorozhuk
有沒有我們可以使用的預編譯的「libnonfree.so」？ – Taiko