After following @sir Rufo suggestion by using "dotnet publish" for single file deployment, I started a comprehensive search and came across the solution below. I tried it and it worked perfectly!!! :)

-In the solution explorer of your project, you need to edit the ".csproj" file by adding the following

-Once that is added, you need to run "dotnet publish -c Release -o publish" -Rebuild the project, then you will notice a folder called "publish" in your project directory

*Thank you all so very much for trying to help, I'm glad I have folks like you in my life. I hope the solution above can benefit others!