First time that I open my project from 2019.1 to 2019.2 there is some error Here the error messages https://imgur.com/nXu6Jgn Then right now every time I open my project it said need to "API update required" ***This project contains scripts and/or assemblies that use obsolete APIs. If you choose 'Go Ahead', Unity will automatically upgrade any scripts/assemblies in the Assets folder found using the old APIs. You should make a backup before proceeding. (You can always run the API Updater manually via the 'Assets/Run API Updater' menu command.)*** and I choose "I made a back up. Go Ahead!" and then there is an error message as in the picture https://imgur.com/h7VETA6 I'm so confuse right now. Much much appreciate.