Android“没有这样的文件或目录”错误？

Question

在安装ADT、添加CDT和NDK以及添加OpenCV库之后，出现以下错误

**** Build of configuration Default for project OpenCV Tutorial 2 - Mixed Processing     ****

C:\android-ndk-r9\ndk-build.cmd 
jni/Android.mk:5: ../../sdk/native/jni/OpenCV.mk: No such file or directory
make: *** No rule to make target `../../sdk/native/jni/OpenCV.mk'.  Stop.

**** Build Finished ****

这是Android.mk代码

    LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

include ../../sdk/native/jni/OpenCV.mk

LOCAL_MODULE    := mixed_sample
LOCAL_SRC_FILES := jni_part.cpp
LOCAL_LDLIBS +=  -llog -ldl

include $(BUILD_SHARED_LIBRARY)

Answer 1

更改包含，使Android.mk引用OpenCV.mk的绝对路径。例如：

WIN: include d:\dev\OpenCV-2.4.6-android-sdk\sdk\native\jni\OpenCV.mk
Linux: include ~/mydevdir/OpenCV-2.4.6-android-sdk/sdk/native/jni/OpenCV.mk

Answer 2

代码不在预期的位置。它期望../../sdk/native/jni/OpenCv.mk目录中存在OpenCV.mk文件

Answer 3

您是否知道在使用include时，相对路径从项目目录开始，而不是项目/jni目录。确保您的目录结构如下所示，

• 根

-- sdk

--项目

而您的include行如下：

include ../sdk/native/jni/OpenCV.mk