Point Cloud Library Simple Example Link Error

Question

I am trying to run the following PCL simple viewer example from http://pointclouds.org/documentation/tutorials/pcl_visualizer.php I have successfully built the binary tree using Cmake and the recommended Cmakelists.txt

After generation, when I try to build it I get the following error :

error LNK2019: unresolved external symbol "public: void __thiscall pcl::visualization::PCLVisualizer::initCameraParameters(void)" (?initCameraParameters@PCLVisualizer@visualization@pcl@@QAEXXZ) referenced in function "class boost::shared_ptr<class pcl::visualization::PCLVisualizer> __cdecl simpleVis(class boost::shared_ptr<class pcl::PointCloud<struct pcl::PointXYZ> const >)" (?simpleVis@@YA?AV?$shared_ptr@VPCLVisualizer@visualization@pcl@@@boost@@V?$shared_ptr@$$CBV?$PointCloud@UPointXYZ@pcl@@@pcl@@@2@@Z)`

error LNK2019: unresolved external symbol "public: void __thiscall pcl::visualization::PCLVisualizer::addCoordinateSystem(double,int)" (?addCoordinateSystem@PCLVisualizer@visualization@pcl@@QAEXNH@Z) referenced in function "class boost::shared_ptr<class pcl::visualization::PCLVisualizer> __cdecl simpleVis(class boost::shared_ptr<class pcl::PointCloud<struct pcl::PointXYZ> const >)" (?simpleVis@@YA?AV?$shared_ptr@VPCLVisualizer@visualization@pcl@@@boost@@V?$shared_ptr@$$CBV?$PointCloud@UPointXYZ@pcl@@@pcl@@@2@@Z)


error LNK2019: unresolved external symbol "public: bool __thiscall pcl::visualization::PCLVisualizer::setPointCloudRenderingProperties(int,double,class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char> > const &,int)" (?setPointCloudRenderingProperties@PCLVisualizer@visualization@pcl@@QAE_NHNABV?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@H@Z) referenced in function "class boost::shared_ptr<class pcl::visualization::PCLVisualizer> __cdecl simpleVis(class boost::shared_ptr<class pcl::PointCloud<struct pcl::PointXYZ> const >)" (?simpleVis@@YA?AV?$shared_ptr@VPCLVisualizer@visualization@pcl@@@boost@@V?$shared_ptr@$$CBV?$PointCloud@UPointXYZ@pcl@@@pcl@@@2@@Z)

And these are just a few... am I missing something in the cmakelists.txt ?

cmake_minimum_required(VERSION 2.6 FATAL_ERROR)

project(pcl_visualizer_viewports)

find_package(PCL 1.5.1 REQUIRED)

include_directories(${PCL_INCLUDE_DIRS})

link_directories(${PCL_LIBRARY_DIRS})

add_definitions(${PCL_DEFINITIONS})

add_executable (pcl_visualizer_demo pcl_visualizer_demo.cpp)

target_link_libraries (pcl_visualizer_demo ${PCL_LIBRARIES})

Any help is appreciated. Thanks

Answer 1

Found what the problem was : Although I am running a 64 bit machine, my compiler (VS2010) is configured for 32 bit so I needed to uninstall the 64 bit Point Cloud Library and install the 32 bit version. Now it works. Lesson learned :D

Answer 2

It looks like you're not linking the PCL libraries. That could be because ${PCL_LIBRARIES} is not set appropriately when running CMake. You could add

message("PCL_LIBRARIES - ${PCL_LIBRARIES}")

to your CMakeLists.txt file after the find_package call to check the value.

If you're using CMake v2.8.8, this bug could be the cause of your problems. Try reverting to v2.8.7.