Issue in installing the g++ compiler in Ubuntu 20

I am facing this error message on Terminal right after typing the command:
$sudo apt install build-essential
.
.
.
//This is the error message:
///////////////////////////////////////////////////////////////////////
E: Malformed entry 58 in list file /etc/apt/sources.list (Component)
E: The list of sources could not be read.
E: Malformed entry 58 in list file /etc/apt/sources.list (Component)
E: The list of sources could not be read.
//////////////////////////////////////////////////////////////////////

Please! Help me to solve this issue!!

Thank You!

Hi Oday_Najjad,

Welcome to our forums.

This error message suggests there is something in your sources.list that apt can’t parse. Have you made changes to this file?