Could not find com.github.orhanobut:hawk:1.20.

[ghost]

Putting compile "com.github.pavlospt:rxiapv3:1.2.1" into build.gradle leads to this error:

Error:Could not find com.github.orhanobut:hawk:1.20.
Required by:
     > com.github.pavlospt:rxiapv3:1.2.1

[pavlospt]

Hello, thank you for reporting it. Seems like the developer of this library deleted this version from Maven. I will need to fix the dependency and re-upload.

[chriswiesner]

you can add

repositories {
  maven { url "https://jitpack.io" }
}

to your build.gradle. (hawk is hosted there)