How to resolve Tkinter errors in Python

I am getting multiple errors and all in Tkinter basically. I am a newbie in this and have no clues what are these errors. Hence i started on reading on Tkinter first. The error messages starts with “Exception in Tkinter call-back” and pops so many errors which i do not know about. What is Tkinter function? How to use that function? How to avoid errors in Tkinter function? I am creating a project for learning colours for children using python. Thank you for your great help.
