Incompatibility with Connexion Version in Swagger Codegen for Flask Server

[AmoushRye]

Description: I have encountered an issue with the Swagger Codegen in a Flask server environment, specifically related to the Python package connexion. The problem arises when using connexion version 3.0.0 or higher, including the current version 3.1.0.

Steps to Reproduce:

1. Generate the server from Swagger Codegen for a Flask server.
2. Install connexion version 3.0.0 or higher.
3. Observe the failure in functionality.

Expected Behavior: The server should work seamlessly with the latest version of connexion (3.1.0) without requiring a downgrade.

Workaround: I downgraded connexion to version 2.14.2 or lower, and the server functions correctly.

Request for Help: Any insights or solutions to ensure compatibility with the latest connexion version would be greatly appreciated.

Thank you for your attention to this matter.