libmixed problem

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Hello,

    I am new to OpenCV. I'm trying to compile the OpenCV and facing problem in compilation. Following is the error.

15:20:51 * Incremental Build of configuration Default for project OpenCV Tutorial 2 - Mixed Processing * "E:\Gesture\android-ndk-r12b-windows-x86\android-ndk-r12b\ndk-build.cmd" Android NDK: WARNING: APP_PLATFORM android-24 is larger than android:minSdkVersion 8 in ./AndroidManifest.xml
Android NDK: WARNING:jni/Android.mk:mixed_sample: non-system libraries in linker flags: -lopencv_java3
Android NDK: This is likely to result in incorrect builds. Try using LOCAL_STATIC_LIBRARIES
Android NDK: or LOCAL_SHARED_LIBRARIES instead to list the library dependencies of the
Android NDK: current module
[armeabi-v7a] Install : libmixed_sample.so => libs/armeabi-v7a/libmixed_sample.so

15:20:52 Build Finished (took 968ms)

      Please advise on the above problem.

Regards, Excel