Android Studio 3.0 Canary 9 - Failed To Resolve Packages

I'm getting several errors within Android Studio 3.0 Canary 9. These errors are 'Failed to resolve:' the android packages, some listed below. I just installed all the extra pack

Solution 1:

Writing:

repositories {
    google()
}

didn't worked in my case, so I used:

repositories {
    maven {
        url 'https://maven.google.com'
    }
}

and it worked!

checkout the migration guide for more info!