A problem occurred configuring project ':native'

I got this error when first building this project.NDK is missing a "platforms" directory.
If you are using NDK, verify the ndk.dir is set to a valid NDK directory. It is currently set to C:\Users\bb\AppData\Local\Android\Sdk\ndk\22.1.7171670.
If you are not using NDK, unset the NDK variable from ANDROID_NDK_HOME or local.properties to remove this warning.

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':native'.
> java.lang.NullPointerException (no error message)

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1s

Start by reproducing the first build and capture the requested stacktrace for the :native configuration failure. Check local.properties, ANDROID_NDK_HOME, and the reported NDK directory, then determine whether the project configuration or the local NDK setup causes the missing platforms directory and NullPointerException. Done means the failure has a reproducible cause and a verified build or documented configuration fix.

Written by the indexing model from the issue text.