How do I port an AIR 3.7 project to AIR 4?

Question

Adobe Flash

There is a mobile application project made in FlashDevelop, it compiles perfectly and runs on AIR 3.7. But since the app store has made the restriction for downloading AIR applications not lower than the 4th version. When trying to run this application on AIR 4, an error message is thrown: "Error: Could not resolve to a component implementation."
What could be the problem?