Android development environment configuration problem

First, download the latest version of Android SDK. However, the latest version of the SDK has clearly stated that "the Android SDK archive now only contains the tools. It no longer comes populated with a specific Android platform or Google add on. Instead you use the SDK manager to install or update SDK components such as platforms, tools, add ons, and documentation.", Therefore, you must download it manually through SDK setup.exe. When downloading again, I encountered a little problem. Record it.

Run SDK setup.exe, first switch to the "Settings" tab, and then click "force" https://.... "Tick it, you must tick it, otherwise you may not be able to download it sometimes, even if we change HTTPS: / / to http: / /. Then add the download address provided by the Android Development Forum in the available packages selection card: https://dl-ssl.google.com/android/respository/respository.xml At this time, click the plus sign in front of the website and many APIs will come out under the website for us to download. Generally speaking, we can choose two or three platforms (1.5, 1.6, 2.1), and download 6 and 7 from Google APIs. Then click "install selected" in the lower right corner of the window to start downloading. During the downloading process, ensure that the network is unblocked. These files are relatively large, and each package has no breakpoint for continuous transmission.

After downloading and installing, be sure to add (at least one) virtual device.