VS2012 Breakpoints are not getting hit

Question

I have a class that looks like this:

public class MyService
{
    private MyService(){}
    public static string GetStuff()
    {
        var stuffDid = new          


        

Answer 1

This one's pretty obscure :

Make sure you don't have two virtual directories with different App Pools pointing to the same physical location on your harddrive. During development this is something that can sometimes happen for testing, or by mistake.

I'm not 100% clear on the technicalities but I had two AppPools and two virtual directories and no breakpoint was ever hit because I presume the physical path was somehow mapped in IIS/Visual Studio to the other apppool and not the one that was actually executing.