For reference this is what I copied from my opencv4 sdk directory
Here are the logs when I run the app on my phone
08/26 20:36:30: Launching 'app' on Google Pixel 4a.
Install successfully finished in 660 ms.
$ adb shell am start -n "opencv.org/com.example.opencvproject.MainActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER
Connected to process 13073 on device 'google-pixel_4a-0B231JEC206204'.
Capturing and displaying logcat messages from application. This behavior can be disabled in the "Logcat output" section of the "Debugger" settings page.
I/opencv.org: Late-enabling -Xcheck:jni
I/opencv.org: Unquickening 12 vdex files!
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
D/NetworkSecurityConfig: No Network Security Config specified, using platform default
I/HELLO:: called onCreate
D/CameraBridge: Attr count: 7
D/OpenCV/StaticHelper: Trying to get library list
E/OpenCV/StaticHelper: OpenCV error: Cannot load info library for OpenCV
D/OpenCV/StaticHelper: Library list: ""
First attempt to load libs
Trying to init OpenCV libs
Trying to load library opencv_java4
D/OpenCV/StaticHelper: Library opencv_java4 loaded
First attempt to load libs is OK
I/OpenCV/StaticHelper: General configuration for OpenCV 4.5.3 =====================================
Version control: 4.5.3
Platform:
Timestamp: 2021-07-05T14:13:06Z
Host: Linux 4.4.0-210-generic x86_64
Target: Android 1 aarch64
CMake: 3.6.0-rc2
CMake generator: Ninja
CMake build tool: /opt/android/android-sdk.gradle/cmake/3.6.4111459/bin/ninja
Configuration: Release
CPU/HW features:
Baseline: NEON FP16
C/C++:
Built as dynamic libs?: NO
C++ standard: 11
C++ Compiler: /opt/android/android-ndk-r18b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang++ (ver 7.0)
C++ flags (Release): -isystem /opt/android/android-ndk-r18b/sysroot/usr/include/aarch64-linux-android -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 -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O2 -DNDEBUG -DNDEBUG
C++ flags (Debug): -isystem /opt/android/android-ndk-r18b/sysroot/usr/include/aarch64-linux-android -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 -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O0 -fno-limit-debug-info -DDEBUG -D_DEBUG -g
C Compiler: /opt/android/android-ndk-r18b/toolchains/llvm/prebuilt/linux-x86_64/bin/clang
C flags (Release): -isystem /opt/android/android-ndk-r18b/sysroot/usr/include/aarch64-linux-android -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O2 -DNDEBUG -DNDEBUG
C flags (Debug): -isystem /opt/android/android-ndk-r18b/sysroot/usr/include/aarch64-linux-android -DANDROID -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -Wa,--noexecstack -Wformat -Werror=format-security -fsigned-char -W -Wall -Werror=return-type -Werror=non-virtual-dtor -Werror=address -Werror=sequence-point -Wformat -Werror=format-security -Wmissing-declarations -Wmissing-prototypes -Wstrict-prototypes -Wundef -Winit-self -Wpointer-arith -Wshadow -Wsign-promo -Wuninitialized -Winconsistent-missing-override -Wno-delete-non-virtual-dtor -Wno-unnamed-type-template-args -Wno-comment -fdiagnostics-show-option -Qunused-arguments -fvisibility=hidden -fvisibility-inlines-hidden -O0 -fno-limit-debug-info -DDEBUG -D_DEBUG -g
Linker flags (Release): -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /opt/android/android-ndk-r18b/platforms/android-21/arch-arm64 -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -L/opt/android/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,--as-needed
Linker flags (Debug): -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libatomic.a -nostdlib++ --sysroot /opt/android/android-ndk-r18b/platforms/android-21/arch-arm64 -Wl,--build-id -Wl,--warn-shared-textrel -Wl,--fatal-warnings -L/opt/android/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,--as-needed
ccache: YES
I/OpenCV/StaticHelper: Precompiled headers: NO
Extra dependencies: z dl m log
3rdparty dependencies: libcpufeatures libprotobuf ade tbb ittnotify libjpeg-turbo libwebp libpng libtiff libopenjp2 IlmImf quirc tegra_hal
OpenCV modules:
To be built: calib3d core dnn features2d flann gapi highgui imgcodecs imgproc java ml objdetect photo stitching video videoio
Disabled: world
Disabled by dependency: -
Unavailable: python2 python3 ts
Applications: -
Documentation: NO
Non-free algorithms: NO
Android NDK: /opt/android/android-ndk-r18b (ver 18.1.5063045)
Android ABI: arm64-v8a
NDK toolchain: aarch64-linux-android-clang
STL type: c++_shared
Native API level: 21
Android SDK: /opt/android/android-sdk.gradle (tools: 26.1.1 build tools: 28.0.3)
GUI:
Media I/O:
ZLib: z (ver 1.2.7)
JPEG: build-libjpeg-turbo (ver 2.1.0-62)
WEBP: build (ver encoder: 0x020f)
PNG: build (ver 1.6.37)
TIFF: build (ver 42 - 4.2.0)
JPEG 2000: build (ver 2.4.0)
OpenEXR: build (ver 2.3.0)
HDR: YES
SUNRASTER: YES
PXM: YES
PFM: YES
Video I/O:
Parallel framework: TBB (ver 2020.2 interface 11102)
Trace: YES (with Intel ITT)
Other third-party libraries:
Custom HAL: YES (carotene (ver 0.0.1))
Protobuf: build (3.5.1)
Python (for build): /usr/bin/python2.7
Java: export all functions
ant: NO
Java wrappers: YES
Java tests: NO
Install to: /build/master_pack-android/build/o4a/install
-----------------------------------------------------------------
D/OCVSample::Activity: OpenCV library found inside package. Using it!
I/OpenCV: OpenCV loaded successfully
D/CameraBridge: call checkCurrentState
I/AdrenoGLES-0: QUALCOMM build : 85da404, I46ff5fc46f
Build Date : 11/30/20
OpenGL ES Shader Compiler Version: EV031.31.04.01
Local Branch : promo490_3_Google
Remote Branch :
Remote Branch :
Reconstruct Branch :
Build Config : S P 10.0.4 AArch64
Driver Path : /vendor/lib64/egl/libGLESv2_adreno.so
I/AdrenoGLES-0: PFP: 0x016ee189, ME: 0x00000000
W/AdrenoUtils: <ReadGpuID_from_sysfs:197>: Failed to open /sys/class/kgsl/kgsl-3d0/gpu_model
<ReadGpuID:221>: Failed to read chip ID from gpu_model. Fallback to use the GSL path
D/CameraBridge: call surfaceChanged event
call checkCurrentState
I/Gralloc4: mapper 4.x is not supported