Well, first you must think, is conflict always bad? Let's take a look at a summary of the book.
In the story "The Tail", Tasha wants to have a fun summer practicing for her double-dutch contest with her friends. The bad thing is that she has to baby-sit her little brother for the summer. This just ruined her plans because now she can’t practice. Her little brother annoys her and gets in the way between her and her friends.
For example, Tasha was trying to play double-dutch with her friends, but her little brother jumps in and messes everything up. I think that conflict isn’t always bad.