Visual Studio uses fastlane to securely handle your authentication details and communicate then with the Apple Developer Portal. In order to use Visual Studio to streamline iOS App development and ipa file creation, you should install fastlane.

To install fastlane for Visual Studio, please follow the steps below:

1. Log in to your MacinCloud server account;

2. Open Visual Studio for Mac in the Applications folder;

3. Go to Preferences > Publishing > Apple Developer Accounts, and click on the "Get fastlane and Sign In" button. Please see screenshot below for reference. It will take a couple of minutes until fastlane is installed;

4. Once the installation is complete, you will see a prompt for your Apple Developer Program ID. And you can proceed logging in to your Apple Developer Program account and continue using Visual Studio for your builds.

If you need more assistance, please contact our support.