OpenCV opencv2/core/core.hpp:没有这样的文件或目录

OpenCV opencv2/core/core.hpp: No such file or directory

本文关键字：core 文件 hpp opencv2 OpenCV      更新时间：2023-10-16

我正在创建一个小项目来测试Android Studio 1.4上的opencv(2.4)，但当我尝试执行应用程序时，我有一个问题与NDK编译器。我认为cpp文件找不到opencv的路径，但我不知道为什么。

有什么办法解决这个问题吗?

错误:

/home/User/AndroidStudioProjects/OpenCV/app/src/main/jni/native_processing.h Error:(10, 33) opencv2/core/core.hpp: No such file or directory

JNI:

OpenCV/app/src/main/jni/native_processing.cpp

OpenCV/app/src/main/jni/native_processing.h 

#ifndef OPENCV_SAMPLE_NATIVE_PROCESSING_H
#define OPENCV_SAMPLE_NATIVE_PROCESSING_H
#include <jni.h>
#include <opencv2/core/core.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <opencv2/features2d/features2d.hpp>
#include <vector>
extern "C" {
JNIEXPORT void JNICALL      Java_com_projeto_opencv_MainActivity_FindFeatures(JNIEnv *, jobject,
                                                                                 jlong addrGray,
                                                                                 jlong addrRgba);
 }
 #endif

Android.mk 

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
OPENCV_LIB_TYPE:=STATIC

PENCV_CAMERA_MODULES:=on
OPENCV_INSTALL_MODULES:=on
OPENCV_LIB_TYPE:=SHARED
include /home/User/AndroidStudioProjects/OpenCV/OpenCV-android-sdk2/sdk/native/jni/OpenCV.mk
LOCAL_C_INCLUDE :=/home/User/Download/OpenCV-android-sdk2/sdk/native/jni/include
LOCAL_SRC_FILES := native_processing.cpp
LOCAL_LDLIBS +=  -llog -ldl
LOCAL_MODULE:= native_test

include $(BUILD_SHARED_LIBRARY)

, 

Error: Warning:Native C/C++ source code is found, but it seems that
NDK option is not configured.  Note that if you have an Android.mk, it is
not used for compilation.  The recommended workaround is to remove the
default jni source code directory by adding:
 android {
    sourceSets {
        main {
            jni.srcDirs = []
        }
    }
}    
to build.gradle, manually compile the code with ndk-build, and then
place the resulting shared object in src/main/jniLibs.
/home/User/AndroidStudioProjects/OpenCV/app/src/main/jni/native_processing.cpp
Information:(1) (Unknown) In file included
/home/User/AndroidStudioProjects/OpenCV/app/src/main/jni/native_processing.h
Error:(10, 33) opencv2/core/core.hpp: No such file or directory
compilation terminated.
make: ***
 [/home/User/AndroidStudioProjects/OpenCV/app/build/intermediates/ndk/debug/obj/local/arm64-v8a/objs/app//home/geison/AndroidStudioProjects/OpenCV/app/src/main/jni/native_processing.o] Error 1
:app:compileDebugNdk FAILED
Error:Execution failed for task ':app:compileDebugNdk'.
com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/home/User/Android/Sdk/ndk-bundle/ndk-build'' finished with non-zero exit value 2

从构建中注释掉以下内容。Gradle(如果有的话):

externalNativeBuild {
        cmake {
            path "CMakeLists.txt"
        }
    }

添加到gradle:

sourceSets.main {
    jni.srcDirs = [] //disable automatic ndk-build call
}

您是否只尝试了#include <opencv2/core.hpp>(而不是#include <opencv2/core/core.hpp>)?

包含的OpenCV。mk为您定义了包含路径，所以不要试图在 include 之后重新定义它。此外，您可能更喜欢OPENCV_LIB_TYPE:=STATIC，因此清理Android。mk文件位:

LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)
OPENCV_CAMERA_MODULES:=on
OPENCV_LIB_TYPE:=STATIC
include /home/User/AndroidStudioProjects/OpenCV/OpenCV-android-sdk2/sdk/native/jni/OpenCV.mk
LOCAL_SRC_FILES := native_processing.cpp
LOCAL_LDLIBS +=  -llog -ldl
LOCAL_MODULE:= native_test
include $(BUILD_SHARED_LIBRARY)

你真的使用相机模块吗?

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