contains AndroidX dependencies, but the `android.useAndroidX` property is not enabled

[johnjeremih]

Configuration debugRuntimeClasspath contains AndroidX dependencies, but the android.useAndroidX property is not enabled, which may cause runtime issues.
Set android.useAndroidX=true in the gradle.properties file and retry.

I'm getting this error, but I already added the gradle.properties file

[Farhandroid]

@johnjeremih
I am really sorry for this issue. I have added the Gradle. properties in this PR.
Please use the current branch. I hope this will solve the issue.

[AndrewMarques2018]

Obrigado pela dica!! Vlw