cmake version in catkin_make different from global cmake version? - cmake

I'm trying to build some package in ROS using catkin.
When I run catkin_make in the top level directory, I got complaint about cmake version:
CMake Error at /usr/lib/x86_64-linux-gnu/cmake/ignition-math4/ignition-math4-config.cmake:26 (cmake_minimum_required):
CMake 3.5.1 or higher is required. You are running version 3.3.2
Then I updated my cmake version, and also modified the path. I verified that the version of cmake is now 3.15:
~/catkin_ws$ cmake --version
cmake version 3.15.0
CMake suite maintained and supported by Kitware (kitware.com/cmake).
when I go back and try catkin_make again, the problem still remains.
I suppose that catkin has defined its own path or environment variable somewhere and are using cmake from a different place, but I couldn't figure out how to change it. Any suggestions? Thanks in advance.
--Kevin

you could remove .catkin_tools from your working directory, and redo the initialization of catkin:
source /opt/ros/<your-ros-development>/setup.bash
and
catkin init
if your environment setup is correct, that should do the trick.

Related

Use CMake binares to build cpp projects without installing CMake

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So, I tried to copy only installed binaries from /usr/local/bin/ (this is default path where CMake binaries were installed) and paste it to another machine that doesn't know about CMake. I paste 3 binaries: cmake, ctest, cpack to /usr/local/bin/.
If I run which cmake it shows path:
/usr/local/bin/cmake
If I run cmake --verison it shows:
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
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/usr/local/share/cmake-3.19
cmake version 3.19.0
CMake suite maintained and supported by Kitware (kitware.com/cmake).
It looks like CMake needs some modules that I haven't copied yet. I tried to build my cpp project and it shows me:
CMake Error: Could not find CMAKE_ROOT !!!
CMake has most likely not been installed correctly.
Modules directory not found in
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CMake Error: Error executing cmake::LoadCache(). Aborting.
What are the minimum required modules needed for stable building? And where I should copy it?
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CMake find_package not working for Eigen?

I'm currently developing a Kalman Filtering library using Eigen and I've successfully gotten it working on my development Mac. Now I'm trying to set it up with Travis CI and CMake is having trouble with finding the package. First I sudo apt install libeigen3-dev and then attempt to run cmake with the following configuration:
cmake_minimum_required(VERSION 3.0)
project(KFilter VERSION 0.1.0)
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add_library(KFilter KFilter.cpp)
target_link_libraries(KFilter Eigen3::Eigen)
This builds just fine on my Mac, but in Travis CI it errors out with the following:
CMake Error at CMakeLists.txt:5 (add_library):
Target "KFilter" links to target "Eigen3::Eigen" but the target was not
found. Perhaps a find_package() call is missing for an IMPORTED target, or
an ALIAS target is missing?
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Travis CI is running Ubuntu 16.04 with CMake 3.12 and the Eigen3 debian package, while my Mac is running CMake 3.13 with Eigen installed through homebrew. I'm really confused as to why CMake is behaving differently.
You don't mention which version of Eigen3 is being used in each case.
It looks like between Eigen3 3.2 and 3.3 it changed from using FindEigen3.cmake to Eigen3Config.cmake. This changed how to include Eigen3 into a project and in 3.3 it uses Eigen3::Eigen3.
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add_definitions ( ${EIGEN3_DEFINITIONS} )
include_directories ( ${EIGEN3_INCLUDE_DIRS} )
So just remove target_link_libraries(KFilter Eigen3::Eigen) and it should be fine.
What worked for me using Ubuntu 16.04 was to remove the target_link_libraries(KFilter Eigen3::Eigen) and change in my source file the following line #include <eigen3/Eigen/Dense>

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Building for: NMake Makefiles
CMake Error in CMakeLists.txt:
Generator
NMake Makefiles
does not support platform specification, but platform
x64
was specified.
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
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Thanks in advance.
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cmake failed to configure due to GL.h

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cmake .
make
make install
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