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MacOS Catalina Beta installation issue

MacOS Catalina Beta installation issue

Today, I decided to install the Catalina Beta but after enrolling to the beta program, I encoutered this issue: The requested version of macos is not available The solution I found is to execute these two commands in the Terminal: sudo defaults read /Library/Preferences/com.apple.SoftwareUpdate CatalogURL sudo

Android Studio Update and missing classes issue

Recently I updated my Android Studio to 3.1.3 version and a strange issue occured. When I opened a random class in one project, there're a lot of red text indicating that the used classes are not imported. After trying numerous actions like clearing the project, restarting the Android