When converting a project to use ARC what does “switch case is in protected scope” mean?

Question

When converting a project to use ARC what does \"switch case is in protected scope\" mean? I am converting a project to use ARC, using Xcode 4 Edit -> Refactor -> Convert to

Answer 1

Surround with braces {} the code between the case statement and the break in each case. It worked on my code.