前几篇中一直在通过Android做JNI调用，关于JNI的配置请见：http://blog.csdn.net/watkinsong/article/details/9849973
但是前一段时间就遇到了整个工程编译都没有问题，但是没有办法运行的问题，编译结果提示如下：
Your Project contains error(s), please fix them before running your application.
但是，整个工程的编译是没有问题的。
查了很多资料，网上大部分都说是证书过期，但是貌似我这里不适用，也按照网上说的做了，没效果，而且证书过期需要一年的时间，我才搞android不到两个星期。
14:15:00 **** Auto Build of configuration Default for project IBMFaceDetectDemo **** "D:\WeiSONG\sdk\Android\android-ndk-r9\ndk-build.cmd" -j2 Android NDK: WARNING: APP_PLATFORM android-18 is larger than android:minSdkVersion 9 in ./AndroidManifest.xml "Compile++ thumb : Canny <= Canny.cpp "Compile++ thumb : Canny <= Canny.cpp Install : libnative_camera_r2.2.0.so => libs/armeabi-v7a/libnative_camera_r2.2.0.so Install : libnative_camera_r2.3.3.so => libs/armeabi-v7a/libnative_camera_r2.3.3.so Install : libnative_camera_r3.0.1.so => libs/armeabi-v7a/libnative_camera_r3.0.1.so Install : libnative_camera_r4.0.0.so => libs/armeabi-v7a/libnative_camera_r4.0.0.so Install : libnative_camera_r4.0.3.so => libs/armeabi-v7a/libnative_camera_r4.0.3.so SharedLibrary : libCanny.so Install : libnative_camera_r2.2.0.so => libs/armeabi/libnative_camera_r2.2.0.so Install : libnative_camera_r3.0.1.so => libs/armeabi/libnative_camera_r3.0.1.so Install : libnative_camera_r2.3.3.so => libs/armeabi/libnative_camera_r2.3.3.so Install : libnative_camera_r4.0.0.so => libs/armeabi/libnative_camera_r4.0.0.so Install : libnative_camera_r4.0.3.so => libs/armeabi/libnative_camera_r4.0.3.so SharedLibrary : libCanny.so Install : libCanny.so => libs/armeabi/libCanny.so Install : libCanny.so => libs/armeabi-v7a/libCanny.so 14:15:03 Build Finished (took 2s.670ms)
可以看到，整个程序编译完全正常，而且整个项目没有任何错误提示，红叉啊什么的
上图中可以看到整个项目没有任何错误提示。
那么？项目的问题在哪里呢？仔细看看编译的过程中，闪过了一些红的错误提示，但是由于安装了ADT的原因，这个时候的输出都是编译的信息，需要切换到Eclipse系统的输出看看错误，我就是因为才接触Eclipse不知道中间还输出了其他的错误信息
切换到Eclipse的控制台输出，会看到下面的错误提示：
[2013-09-11 14:09:54 - IBMFaceDetectDemo] Error generating final archive: Found duplicate file for APK: lib/armeabi/libnative_camera_r2.2.0.so Origin 1: D:workspaceIBMFaceDetectDemolibsarmeabilibnative_camera_r2.2.0.so Origin 2: D:WeiSONGsdkopencv2.4androidOpenCV-2.4.0libsarmeabilibnative_camera_r2.2.0.so [2013-09-11 14:15:50 - IBMFaceDetectDemo] Error generating final archive: Found duplicate file for APK: lib/armeabi/libnative_camera_r2.2.0.so Origin 1: D:workspaceIBMFaceDetectDemolibsarmeabilibnative_camera_r2.2.0.so Origin 2: D:WeiSONGsdkopencv2.4androidOpenCV-2.4.0libsarmeabilibnative_camera_r2.2.0.so
这里提示了动态链接库重复了，再仔细看看我们的工程目录:
NDK 在编译的时候根据Opencv.mk的参数设置，讲那几个关于摄像头的动态链接库复制到libs文件夹里面了，然后我们的工程还引用了Opencv2.4的这个lib库，所以造成了本工程的lib和opencv2.4的外部lib冲突了。
看一下我们原来的Android.mk文件：
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_LIB_TYPE:=STATIC
ifeq ("$(wildcard $(OPENCV_MK_PATH))","")
#try to load OpenCV.mk from default install location
include D:/WeiSONG/sdk/opencv2.4android/OpenCV-2.4.0/share/OpenCV/OpenCV.mk
else
include $(OPENCV_MK_PATH)
endif
LOCAL_MODULE := Canny
LOCAL_SRC_FILES := Canny.cpp
include $(BUILD_SHARED_LIBRARY)
这个mk文件中，没有定义 下面这句话，所以会导致opencv.mk在编译文件的时候讲动态链接库复制了
OPENCV_CAMERA_MODULES:=off
看一下opencv.mk的内容（部分）：
ifeq (${OPENCV_CAMERA_MODULES},off)
OPENCV_CAMERA_MODULES:=
else
ifeq ($(TARGET_ARCH_ABI),armeabi)
OPENCV_CAMERA_MODULES:= native_camera_r2.2.0 native_camera_r2.3.3 native_camera_r3.0.1 native_camera_r4.0.0 native_camera_r4.0.3
endif
ifeq ($(TARGET_ARCH_ABI),armeabi-v7a)
OPENCV_CAMERA_MODULES:= native_camera_r2.2.0 native_camera_r2.3.3 native_camera_r3.0.1 native_camera_r4.0.0 native_camera_r4.0.3
endif
ifeq ($(TARGET_ARCH_ABI),x86)
OPENCV_CAMERA_MODULES:= native_camera_r2.3.3 native_camera_r3.0.1 native_camera_r4.0.3
endif
endif
可以看到如果不定义
OPENCV_CAMERA_MODULES
这个变量的话，会自动复制一些摄像头相关的链接库。
所以在我们的工程的Android.mk中，应该添加上
OPENCV_CAMERA_MODULES:=off
这一句，然后就可以正常的运行你的程序了，在libs文件夹中也不会看到摄像头相关的链接库了。
新的Android.mk代码：
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_CAMERA_MODULES:=off
OPENCV_LIB_TYPE:=STATIC
ifeq ("$(wildcard $(OPENCV_MK_PATH))","")
#try to load OpenCV.mk from default install location
include D:/WeiSONG/sdk/opencv2.4android/OpenCV-2.4.0/share/OpenCV/OpenCV.mk
else
include $(OPENCV_MK_PATH)
endif
LOCAL_MODULE := Canny
LOCAL_SRC_FILES := Canny.cpp
include $(BUILD_SHARED_LIBRARY)
然后在编译信息提示中，也不会看到像原来的提示信心那么多了：
14:30:41 **** Auto Build of configuration Default for project IBMFaceDetectDemo **** "D:\WeiSONG\sdk\Android\android-ndk-r9\ndk-build.cmd" -j2 Android NDK: WARNING: APP_PLATFORM android-18 is larger than android:minSdkVersion 9 in ./AndroidManifest.xml "Compile++ thumb : Canny <= Canny.cpp "Compile++ thumb : Canny <= Canny.cpp SharedLibrary : libCanny.so SharedLibrary : libCanny.so Install : libCanny.so => libs/armeabi-v7a/libCanny.so Install : libCanny.so => libs/armeabi/libCanny.so 14:30:43 Build Finished (took 2s.195ms)