Android SDK Manager cannot update

Problem Description:

the Android SDK Manager cannot download the update, or the update is very slow, or the list of packages to be installed is not displayed. Workaround:First, we'll modify the hosts file. The location of the file is in the system disk (typically C-drive) with the following path:C:\Windows\System32\ drivers\etc\hosts. After the file is found, we need to modify the file. Some students may find that will not be able to modify the file, this may be because the hosts file is set to read-only properties, we can remove its read-only properties, in the file properties, the tick will be canceled. if the situation is not authorized, the simple point is to copy the host to the desktop modification and then overwrite back. Open the Hosts file again, and add the following code in its trailing margin to save:

#Google主页203.208.46.146 www.google.com# This line is for the convenience of opening the Android development website now it seems like no VPN can also open 74.125.113.121 developer.android.com# The updated content is downloaded from the following address 203.208.46.146 dl.google.com203.208.46.146 dl-ssl.google.com

Second, in the Android SDK Manager's tool->options option, the HTTPS resource acquisition method is forced to replace the HTTP protocol acquisition method. As shown below:

Third, reopen the Android SDK Manager to see if a normal update list is displayed.