I found that searching through files to locate where the console warnings are printed can be just as tedious as disabling packages in a methodical way.
With Atom closed I went to ~/.atom/packages folder and simply dragged out a batch of packages (package names starting with “a” through to “p”) into a temp folder. I then restarted Atom and inspected Console.
No errors seen in console.
Conclusion: One of the moved packages is the cause.
I then moved back packages in sets and retested Atom. Using this process of elimination I found the culprit to be
Laravel is a framework for PHP development and I had three laravel packages installed.
I will now try to understand why
laravel-snippets-5 prints 21 warnings.
The important lesson I learned is how to locate source of console errors. Console does not point to the source package generating the error message.
p.s. I saw from searching Packages repo that there is also
laravel-5-snippets and when that is installed there are no error messages in console.