Trouble installing Android Studio, what should I do?

Question

Android

I put Android Studio, at startup it says:
"The following SDK components were not installed: extra-android-m2repository, tools".
How to solve this problem?

Answer 1

The installer says that it cannot download the necessary components from the Internet. Check if you have an internet connection.
Also on SO they write that running with administrator rights can help. Perhaps the ide is trying to download data to a directory that is write-protected for the user

Answer 2

Run as admin and allow the firewall access to the Internet for the installer.

Answer 3

Mac installation? If yes, then in System Preferences -> Security and Protection -> Allow the use of programs downloaded from: Any source.