Hi @anasarrak ,
I switched again the 2 batteries and the wifi came back (well i don't really unsterstand this wifi bug). Now, with or without the -j parameter it won't compile. I tried to look at the message error on the internet, and the common response was that there's no c++ compiler.
But when i do: sudo apt-get install build-essential -y to install it the output of the shell says it is already installed. So I can't compile the code
Here is the errors output of the shell (with the -j parameter) :
CMake Error at /usr/share/cmake-3.0/Modules/FindBoost.cmake:1198 (message):
Unable to find the requested Boost libraries.
CMake Error at /opt/ros/kinetic/share/catkin/cmake/catkinConfig.cmake:83 (find_pa ckage):
Could not find a package configuration file provided by "cv_bridge" with
any of the following names:
Invoking "cmake" failed
Thanks for your help,