“Cannot connect to iTunes Store” in-app purchases

Question

I am having problems testing my in-app purchases. I get back valid product identifiers, but upon purchase I receive the dreaded \"Cannot connect to iTunes Store\". Interesti

Answer 1

This error also had occurred when to SKProductsRequest passed wrong NSSet:

Wrong:

let products = NSSet(objects: ["id1", "id2"])

Correct:

let products = NSSet(objects: "id1", "id2")