問題：
Error:A problem occurred configuring project ':app'.
> NDK not configured. D:\Android\sdk\ndk-bundle
Download it with SDK manager.
解決方法：
1、Tools -> Android -> SDK Manager
2、local.properties文件中配置NDK路徑
## This file is automatically generated by Android Studio.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must *NOT* be checked into Version Control Systems,
# as it contains information specific to your local configuration.
#
# Location of the SDK. This is only used by Gradle.
# For customization when using a Version Control System, please read the
# header note.
#Sun Apr 15 17:30:43 CST 2018
ndk.dir=D\:\\Android\\sdk\\ndk-bundle
sdk.dir=D\:\\Android\\sdk