cygwin下ndk编译工程中使用ffmpeg时出现的错误:“error: undefined reference to 'av_register_all()'” 使用ffmpeg的源文件是  *.cpp 而且在已经引入了ffmpeg的相应的头文件. 所以解决方法: extern "C" { #include <libavcodec/avcodec.h> #include <libavformat/avformat.h> } ------------------…

moc_fortunethread.cpp:100: error: undefined reference to `FortuneThread::GetToParentThread(QString, QString)' collect2.exe:-1: error: error: ld returned 1 exit status ////////////////////////// 信号曹未添加实现而引起的错误,添加实现后错误立即消失.holy shit !!!…

HAL层和JNI层中的打印都必须包含下面的宏和头文件. 比如:LOGD.LOGE等等. #define LOG_TAG "TEST_LED" #include <utils/Log.h> 添加了,编译时还是会报错. hardware/rockchip/test/led_hal.c:: error: undefined reference to 'LOGD' hardware/rockchip/test/led_hal.c:: error: undefined referen…

when I compile caffe file : .build_debug/lib/libcaffe.so: undefined reference to `cv::imread(cv::String const&, int)'.build_debug/lib/libcaffe.so: undefined reference to `cv::imencode(cv::String const&, cv::_InputArray const&, std::vector<u…

undefined reference 往往是链接时出现错误,无法解析引用.这篇文章总结的很好undefined reference问题总结 error: ld returned 1 exit status 链接文件没有建立 案例 #include<vector> #include<algorithm> #include<iostream> #include<cstdio> using namespace std; class Solution { stat…

在把DSO移植到QT工程中,出现了 /usr/bin/ld: KeyFrameDisplay.o: undefined reference to symbol '__glewBufferSubData' 报错,原因是.pro文件中没有加 GLEW库. 解决方案: 在.pro文件中加上这句: ##### GLEW ##### LIBS += -lGLEW error: main.o: undefined reference to symbol 'glTexImage2D' 报错,原因是.pro文件…

When building on Ubuntu 12.x the build fails with the following error… gcc samples/generate/main.o -lm -Llib -lnmea -o build/samples_generatelib/libnmea.a(generate.o): In function `nmea_gsv_npack':generate.c:(.text+0x700): undefined reference to `cei…

一般来说,写C++程序时推荐“类的声明和实现分离”,也就是说一个类的声明放在example.h文件中,而这个类的实现放在example.cpp文件中,这样方便管理,条理清晰. 但是如果类的声明用到了模板template,则类的声明与实现分离是不可取的,因为这个GCC会报错,比如undefined reference to XXX等错误. 所以如果用到了template需要把函数的实现放到类的声明文件中. 附:出错的编译日志如下:…

最近在搞天使之翼的mrp模拟器... 移到AndroidStudio了,现在想把原来的Android .mk那种方式的改成cmake的方式编译,但是编译时有一些符号找不到. undefined reference,这些其实是在一个叫mr_gc的文件里的,但是没有这个文件.所以决定直接忽略找不到的符号,但是搜到的是Android.mk的 最后在这个blog发现了 https://blog.csdn.net/suningning/article/details/74509894 通过设置这个参数 A…

问题1:/usr/bin/ld: warning: libpng16.so.16, needed by /home/andrei/anaconda/lib/libopencv_highgui.so, not found (try using -rpath or -rpath-link)/home/andrei/anaconda/lib/libopencv_highgui.so: undefined reference to `png_create_read_struct@PNG16_0'/hom…

undefined reference to `inflateValidate@ZLIB_1.2.9' Makefile.config添加一行LINKFLAGS := -Wl,-rpath,$(HOME)/anaconda2/lib…

QT  5.6版本 用Qt界面设计器打开界面文件,在界面上托入QWebView控件,这时运行会出现错误,错误如下: ......... undefined reference to `QWebView::load(QUrl const&)' ......... 原因是没有在其工程文件.pro中加入所需的webkitwidgets, 注意Qt5之前的版本是webkit . 1)在mainwindow.h中添加: #include <QtWebKitWidgets/QWebView> 2)…

use hidl , make fail. reason is:missing libs:libbinder…

net_message_processor是我自己定义的一个类,文件名称分别是net_message_processor.h  & net_message_processor.cpp 和CCDirector 放在同一个目录下面,在VS中将其加入到libcocos2d静态库中编译,正常通过,在eclipse中使用NDK来编译自己的项目时,报错,错误信息如标题 首先想到的是,在eclipse的libcocos2d动态库中有没有把这个新加的文件给编译进来,找了一下,没有发现net_message_pr…

_imp__getnameinfo@28对应着winsock2.h的getnameinfo函数 首先需要导入对应的头文件 #ifndef WIN32 #include <sys/socket.h> #include <netinet/in.h> #else //win7下的头文件 #include <winsock2.h> #include<ws2tcpip.h> #endif 在qt的.pro工程文件中添加ws2_32.lib文件即可. LIBS += -…

转自:http://blog.csdn.net/u011589606/article/details/23474241 in the cpp file, please include #include <cutils/properties.h> in Android.mk, please add LOCAL_STATIC_LIBRARIES := \       libcutils \…

出现如下错误: 解决办法 当类中加入Q_OBJECT,需要手动删除中间文件,再构建…

g++ main.cpp -o main `pkg-config --libs --cflags opencv`注意--libs的位置https://stackoverflow.com/questions/25476466/error-undefined-reference-to-cvimreadstdstring-const-int…

在android程序中使用NDK编译后的ffmpeg库的时候出现了如下错误: jni/libs/libavutil.a(mem.o): in function av_malloc:libavutil/mem.c:95: error: undefined reference to 'posix_memalign' 上网查阅,发现是由于android系统一开始并不支持posix,后来增加了对posix的支持. 这个问题出现的主要原因有两个: 1.编译APP的时候指定的APP_PLATFORM 过低…

[错误描述] 未定义引用 提示如下:bootable/recovery/minzip/Zip.c:1122: error: undefined reference to 'selabel_lookup'bootable/recovery/minzip/Zip.c:1123: error: undefined reference to 'setfscreatecon'bootable/recovery/minzip/Zip.c:1129: error: undefined reference to…

注意OpenCV 4.0.1 解决了这个问题请直接下载OpenCV 4.0.1 但是OpenCV 4.0.1作为模块导入Android Studio会有找不到R.styleable的问题 OpenCV 4.0.1 找不到R.styleable解决 OpenCV4Android支持三种使用方式 1.Java层调用2.NDK调用动态库(方便,但是会包含整个.so库)3.NDK调用静态库(灵活,比如没有用到机器学习模块,libopencv_ml.a里的代码是不会打包到动态库里的)通过链接静态库的方式使…

使用cocos compile -p android编译cocos2dx项目的时候出现如下错误(新建了TestScene.h,TestScene.cpp): jni/../../Classes/AppDelegate.: error: undefined reference to 'TestScene::createScene()' clang++.exe: error: linker command failed with exit code (use -v to see invocation…

Re: [xml] MSYS and MINGW: undefined reference to _imp__xmlFree From: Mike Peat <mpeat unicorninterglobal com> To: danielg teragram com Cc: "Daniel Richard G." <oss teragram com>, xml gnome org Subject: Re: [xml] MSYS and MINGW: undef…

1. 建立一个console工程 QT -= gui CONFIG += c++ console CONFIG -= app_bundle # The following define makes your compiler emit warnings if you use # any feature of Qt which as been marked deprecated (the exact warnings # depend on your compiler). Please consu…

undefined reference to typeinfo - C++ error message There are some compiler and loader error messages that shout obviously as to their cause, but there are others that simply don't give the new user much of an indication as to what's really wrong. An…

main.cpp:(.text.startup+0x22): undefined reference to `QApplication::QApplication(int&, char**, int)' moc_CalculatorUI.o:(.data.rel.ro._ZTV12CalculatorUI[_ZTV12CalculatorUI]+0x1a0): undefined reference to `QWidget::inputMethodQuery(Qt::InputMethodQue…

出现的错误: undefined reference to `_imp___ZN10QTcpSocketD1Ev' undefined reference to `_imp___ZN10QTcpSocketC1EP7QObject' undefined reference to `_imp___ZN10QTcpSocketD1Ev' undefined reference to `_imp___ZN10QTcpSocketD1Ev' undefined reference to `_imp___…

./configure --with-mysql=/backup/mysql --with-freetype-dir --with-jpeg-dir --with-png-dir --with-zlib --with-curl --with-gd --enable-gd-native-ttf --with-apxs2=/usr/local/apache/bin/apxs --enable-sockets --with-iconv make时提示: ........................…

今天在ubuntu系统下进行程序调试的时候出现以下错误信息: [ %] Linking CXX executable ../test_coco /usr/local/lib/libgsl.so: undefined reference to `cblas_ztrsv' /usr/local/lib/libgsl.so: undefined reference to `cblas_scasum' /usr/local/lib/libgsl.so: undefined reference to `c…

g++ -O0 -g3 -I. -Ithird/json -Ithird/core/include -Ithird/vite/include -Ithird/openfst-1.2.10/src/include -o a.out test/test.c test/build/testbuild.o test/train/test_lm2.o test/tool/load_two/load_two.o test/tool/multi_thread/test-multi.o test/tool/me…