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Looks like you have Android Studio in Offline Mode so it isn't able to query remote repositories.

Unknown host 'Этот хост неизвестен (dl.google.com)'. You may need to adjust the proxy settings in Gradle. Enable Gradle 'offline mode' and sync project Learn about configuring HTTP proxies in Gradle

Again, some kind of internet issue. You need to ensure that your machine is able to remotely access the repositories configured in your project.

Thanks. I'll figure it out!