May 28, 2018

Hi Everybody, I have run into a linker issue while compiling my software on the web IDE. Essentially the problem is this: I have my library.cpp and library.h along with 20-30 other files (with directory structure flattened). library.cpp uses functions from another file library-helper.h, therefore library.h has an #include “library-helper.h”. Now, when I compile this locally with the The error: undefined reference to 'main' in C program is a very stupid mistake by the programmer, it occurs when the main() function does not exist in the program. 🐛 Bug When building with current master 07bb442 with following script #!/bin/bash export REL_WITH_DEB_INFO=1 export USE_CUDA=1 export BUILD_TEST=0 export BUILD_BINARY=0 export BUILD_CAFFE2_OPS=0 export USE_MKLDNN=0 export USE_FBGEMM=0 ex I tried adapting the Actionlib Client-Tutorial to a action I already used in some python scripts but as soon as I insert. add_executable(urdf_optimizer_beta src/urdf_optimizer_beta.cpp) target_link_libraries(urdf_optimizer_beta ${catkin_LIBRARIES}) add_dependencies(urdf_optimizer_beta pilatus_EXPORTED_TARGETS)

This is true in general case, but first thing you think about when somebody asks about undefined reference in C++ should be "does he use templates and separate declaration from definition?". – Griwes Oct 7 '12 at 19:34

Chapter-13\pe-13-04\port.cpp|74|undefined reference to `vtable for VintagePort' The line number was pointing to my derived class constructor definition. I did some googling around and came across this workaround. Mar 11, 2019 · Undefined reference to `exp' Sorry for resurrecting an old thread, but I have exactly the same problem and the solution proposed here didn't help. To make matters more interesting, I had similar programs working maybe a year ago and then I don't really know what happened. I am building a project with OpenCV 4 beta and when I use the function cv::imread or cv::imwrite I get an undefined reference to the functions. My CMakeLists.txt is as follows: cmake_minimum_requir Dec 28, 2017 · I am using Vivado 2017.3 with SDK. In SDK I enable the flash memory library. When I compile the program it complains of undefined reference for all the flash library functions even though the bsp has all the files. I have added the header file in my main, so I cant understand why there is a problem.

undefined reference to `HAL_UART_Init'

In function main': random_walk.cpp:(.text+0x46): undefined reference toros::init(int&, char**, std::string const&, unsigned int)' This source says "If you see errors from catkin_make that the header ros/ros.h cannot be found, or “undefined reference” errors on ros::init or other ROS functions, the most likely reason is that your CMakeLists CMakeList.txt使用target_link_libraries替换find_library,否则NDK版本高于19就会报错error: undefined reference to '__write_chk' pqpo/SmartCropper#106 Closed Sign up for free to join this conversation on GitHub . C++: undefined reference to [function] [duplicate] Tag: c++. This question already has an answer here: