First of all, I'm new to Linux OS.

I installed `ubuntu` and `eclipse` and the `c/c++` package.

I started a new project, that is the default project, "Hello World c++ project",
and when I run it, it's given me the erorr:

```
Description     Resource    Path    Location    Type
Program "g++" not found in PATH         Preferences, C++/Build/Settings/Discovery, [CDT GCC Builtin Compiler Settings] options  C/C++ Scanner Discovery Problem

```

What should I do?