FAILED: lib/arm64-v8a/libopencv_world.so
cmd.exe /C "cd . && C:\Users\yyyy\programs\Qt\3rdLibs\Android\android-ndk-r18b-windows-x86_64\android-ndk-r18b\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android26 --gcc-toolchain=C:/Users/yyyy/programs/Qt/3rdLibs/Android/android-ndk-r18b-windows-x86_64/android-ndk-r18b/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64 --sysroot=C:/Users/yyyy/programs/Qt/3rdLibs/Android/android-ndk-r18b-windows-x86_64/android-ndk-r18b/sysroot -fPIC -isystem C:/Users/yyyy/programs/Qt/3rdLibs/Android/android-ndk-r18b-windows-x86_64/android-ndk-r18b/sysroot/usr/include/aarch64-linux-android -g -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -std=c++11    -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wsign-promo -Wuninitialized -Winit-self -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -ffunction-sections -fdata-sections  -fvisibility=hidden -fvisibility-inlines-hidden -Wno-deprecated -Wno-missing-prototypes -Wno-missing-declarations -Wno-shadow -Wno-unused-parameter -Wno-sign-compare -Wno-invalid-offsetof -Wno-deprecated-declarations -Wno-deprecated-declarations -O2 -DNDEBUG   -DNDEBUG  -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot C:/Users/yyyy/programs/Qt/3rdLibs/Android/android-ndk-r18b-windows-x86_64/android-ndk-r18b/platforms/android-26/arch-arm64 -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -LC:/Users/yyyy/programs/Qt/3rdLibs/Android/android-ndk-r18b-windows-x86_64/android-ndk-r18b/sources/cxx-stl/llvm-libc++/libs/arm64-v8a -Wl,--no-undefined -Wl,-z,noexecstack -Qunused-arguments -Wl,-z,relro -Wl,-z,now   -Wl,--gc-sections -Wl,--as-needed -shared -Wl,-soname,libopencv_world.so -o lib\arm64-v8a\libopencv_world.so @CMakeFiles/opencv_world.rsp  && cd ."
3rdparty/lib/arm64-v8a/liblibprotobuf.a: error adding symbols: Archive has no index; run ranlib to add one
clang++.exe: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.