Issue while debugging Linux based C++ code visual studio code

I am trying to debug my code in visual studio code in Linux - Ubuntu. I have configured the debugging configurations according to the specification. But when trying to debug I am getting the following error.

=thread-group-added,id="i1" GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1 Copyright (C) 2016 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: http://www.gnu.org/software/gdb/bugs/. Find the GDB manual and other documentation resources online at: http://www.gnu.org/software/gdb/documentation/. For help, type "help". Type "apropos word" to search for commands related to "word". =cmd-param-changed,param="pagination",value="off" Stopped due to shared library event (no libraries added or removed) Loaded '/lib64/ld-linux-x86-64.so.2'. Symbols loaded. [Inferior 1 (process 18634) exited with code 0177] The program '/home/source/src/.libs/main' has exited with code 177 (0x000000b1).

   launch.json

        {
            // Use IntelliSense to learn about possible attributes.
            // Hover to view descriptions of existing attributes.
            // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
            "version": "0.2.0",
            "configurations": 
            [
                {
                    "name": "C++ Launch",
                    "type": "cppdbg",
                    "request": "launch",
                    "targetArchitecture": "x64",
                    "program": "${workspaceFolder}/src/.libs/main",
                    "args": [],
                    "stopAtEntry": false,
                    "cwd": "${workspaceRoot}",
                    "environment": [],
                    "externalConsole": true,
                    "linux": {
                        "MIMode": "gdb"
                    },
                    "osx": {
                        "MIMode": "lldb"
                    },
                    "windows": {
                        "MIMode": "gdb"
                    }
                },
            ]
        }

You have compiled your program without debugging information. Compile it with -g compiler and linker option.