If you already had the shoe maker glue it, and that came off, I think it's time for new shoes.

I've used Goop as opposed to "Shoe goo" on mine, and it stuck "like glue" until it was abused. Once it reaches that point, you really need another solution.
http://www.amazon.com/Amazing-All-Purpose-Household-3-7-Ounce-130012/dp/B0000A605I

Thanks might try it, I was also thinking about Liquid nails.

I had the same problem.  A fellow bowler said I needed "contact cement," but I could not find anything that met that description in the store. 

I ended up getting one called "Loctite," which said it was for vinyl, fabric and plastic."

I figured this would work because I was glueing the fabric (non-velcro) side back onto the plastic sole.  The glue worked great, and it helped my problem a little, but the problem I had was that, even though I glued it back together, the velcro side of the sole was no longer sticking to the shoe.

So I had to replace the sole with a new one and that solved my problem.

gorilla glue

Guys,

If a shoemaker, a cobbler's glue won't hold the sole and last together, what makes you think some other kind of glue will do the job properly??? Don't forget, you need flexibility, when the glue dries, as well as holding the two parts together.

As one other poster already said, the two parts are probably no longer in good condition to be "glued" together. Both parts need to be clean of all old glue and other foreign materials before the process can correctly begin.