打包apk时报错：C/C++: ld: error: ncnn-20220216/build-android-armv7/install/lib/libncnn.a(mat_pixel_android.cpp.o) is incompatible with aarch64linux

[yumingchen]

C/C++: ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(mat_pixel_android.cpp.o) is incompatible with aarch64linux

Execution failed for task ':app:buildCMakeRelWithDebInfo[arm64-v8a]'.

Build command failed.
Error while executing process /usr/bin/ninja with arguments {-C /media/cym/CYM/CLionProjects/NCNN/ncnn-android-yolov5/app/.cxx/RelWithDebInfo/121p3v4c/arm64-v8a yolov5ncnn}
ninja: Entering directory `/media/cym/CYM/CLionProjects/NCNN/ncnn-android-yolov5/app/.cxx/RelWithDebInfo/121p3v4c/arm64-v8a'
[1/2] Building CXX object CMakeFiles/yolov5ncnn.dir/yolov5ncnn_jni.cpp.o
[2/2] Linking CXX shared library /media/cym/CYM/CLionProjects/NCNN/ncnn-android-yolov5/app/build/intermediates/cxx/RelWithDebInfo/121p3v4c/obj/arm64-v8a/libyolov5ncnn.so
FAILED: /media/cym/CYM/CLionProjects/NCNN/ncnn-android-yolov5/app/build/intermediates/cxx/RelWithDebInfo/121p3v4c/obj/arm64-v8a/libyolov5ncnn.so
: && /home/cym/Android/Sdk/ndk/25.0.8775105/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ --target=aarch64-none-linux-android24 --sysroot=/home/cym/Android/Sdk/ndk/25.0.8775105/toolchains/llvm/prebuilt/linux-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -O2 -g -DNDEBUG -static-libstdc++ -Wl,--build-id=sha1 -Wl,--no-rosegment -Wl,--fatal-warnings -Wl,--gc-sections -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libyolov5ncnn.so -o /media/cym/CYM/CLionProjects/NCNN/ncnn-android-yolov5/app/build/intermediates/cxx/RelWithDebInfo/121p3v4c/obj/arm64-v8a/libyolov5ncnn.so CMakeFiles/yolov5ncnn.dir/yolov5ncnn_jni.cpp.o /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a -ljnigraphics -fopenmp -static-openmp /home/cym/Android/Sdk/ndk/25.0.8775105/toolchains/llvm/prebuilt/linux-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libvulkan.so /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libglslang.a /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libSPIRV.a /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libMachineIndependent.a /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libOGLCompiler.a /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libOSDependent.a -pthread /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libGenericCodeGen.a -landroid -ljnigraphics -llog -latomic -lm && :
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(allocator.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(benchmark.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(gpu.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(layer.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(mat.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(net.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(option.cpp.o) is incompatible with aarch64linux
ld: error: /media/cym/CYM/CLionProjects/NCNN/ncnn-20220216/build-android-armv7/install/lib/libncnn.a(mat_pixel_android.cpp.o) is incompatible with aarch64linux
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

在虚拟设备能展示界面，但是打包apk时保了错。看了下貌似没有生成libyolov5ncnn.so，不明觉厉。
求大佬指点！！！

[Ayers-github]

我也是同样的错误：
Build command failed.
Error while executing process D:\sdk\cmake\3.10.2.4988404\bin\ninja.exe with arguments {-C C:\Users\Administrator\Desktop\ncnn-android-yolov5-master\app.cxx\cmake\debug\arm64-v8a yolov5ncnn}
ninja: Entering directory C:\Users\Administrator\Desktop\ncnn-android-yolov5-master\app\.cxx\cmake\debug\arm64-v8a' [1/1] Linking CXX shared library C:\Users\Administrator\Desktop\ncnn-android-yolov5-master\app\build\intermediates\cmake\debug\obj\arm64-v8a\libyolov5ncnn.so FAILED: C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/build/intermediates/cmake/debug/obj/arm64-v8a/libyolov5ncnn.so cmd.exe /C "cd . && D:\sdk\ndk\21.4.7075529\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android24 --gcc-toolchain=D:/sdk/ndk/21.4.7075529/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/sdk/ndk/21.4.7075529/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security -O0 -fno-limit-debug-info -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -static-libstdc++ -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libyolov5ncnn.so -o C:\Users\Administrator\Desktop\ncnn-android-yolov5-master\app\build\intermediates\cmake\debug\obj\arm64-v8a\libyolov5ncnn.so CMakeFiles/yolov5ncnn.dir/yolov5ncnn_jni.cpp.o C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libncnn.a -ljnigraphics -fopenmp -static-openmp D:/sdk/ndk/21.4.7075529/toolchains/llvm/prebuilt/windows-x86_64/sysroot/usr/lib/aarch64-linux-android/24/libvulkan.so C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libglslang.a C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libSPIRV.a C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libMachineIndependent.a C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libOGLCompiler.a C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libOSDependent.a -pthread C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libGenericCodeGen.a -landroid -ljnigraphics -llog -latomic -lm && cd ." C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevicePrivate::destroy_dummy_buffer_image()':
gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivate26destroy_dummy_buffer_imageEv+0x20): undefined reference to __aarch64_ldadd4_acq_rel' gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivate26destroy_dummy_buffer_imageEv+0x74): undefined reference to __aarch64_ldadd4_acq_rel'
gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivate26destroy_dummy_buffer_imageEv+0xc4): undefined reference to __aarch64_ldadd4_acq_rel' C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libncnn.a(gpu.cpp.o): In function ncnn::VulkanDevicePrivate::~VulkanDevicePrivate()':
gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivateD2Ev[_ZN4ncnn19VulkanDevicePrivateD2Ev]+0x28): undefined reference to __aarch64_ldadd4_acq_rel' gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivateD2Ev[_ZN4ncnn19VulkanDevicePrivateD2Ev]+0x78): undefined reference to __aarch64_ldadd4_acq_rel'
C:/Users/Administrator/Desktop/ncnn-android-yolov5-master/app/src/main/jni/ncnn-20220729-android-vulkan/arm64-v8a/lib/libncnn.a(gpu.cpp.o):gpu.cpp:(.text._ZN4ncnn19VulkanDevicePrivateD2Ev[_ZN4ncnn19VulkanDevicePrivateD2Ev]+0xc8): more undefined references to `__aarch64_ldadd4_acq_rel' follow
clang++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.

[Chopin68]

我也是这个错误，请问你们解决了吗

[Chopin68]

我也是这个错误，请问你们解决了吗

我通过更换到ncnn-20201218-android-vulkan成功编译

[efinal]

我也是类似的错误，通过更换NDK版本搞定。
注意，每个ncnn-xxxx-android-vulkan 都有一个对应的NDK版本，在它的release notes里面有写，例如ncnn-20220729-android-vulkan对应的是android-ndk-r24，所以下载对应版本的NDK，在project structure里面设置好，就好了