Failed to install the following Android SDK packages as some licences have not been accepted.

问题：
Failed to install the following Android SDK packages as some licences have not been accepted.
platforms;android-26 Android SDK Platform 26
build-tools;28.0.3 Android SDK Build-Tools 28.0.3
To build this project, accept the SDK license agreements and install the missing components using the Android Studio SDK Manager.
Alternatively, to transfer the license agreements from one workstation to another, see http://d.android.com/r/studio-ui/export-licenses.html

Using Android SDK: E:\ProgrammingSoftware\Android\SDK

解决：
点击File选择Settings，如下图，下载对应缺少的东西。