I have the gcc installed. I can compile C programs. But I cannot compile C++ programs. If I write g++ on comd line, it says program not installed. I tried sudo apt-get install g++
It gives me a very long output, saying things like some packages cannot be installed and some are newest version already. Also tried
sudo apt-get install build-essential
It says build-essential package is not available.
Also tried
sudo apt-get update
Nothing works. What to do now? How to compile g++ programs