Error:Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed : uses-sdk:minSdkVersion 15 cannot be smaller than version 16 declared in library [com.github.andremion:counterfab:1.0.3] /Users/vaevictis/.gradle/caches/transforms-1/files-1.1/counterfab-1.0.3.aar/a29aa8c4f85a075f9eafa82ab292b634/AndroidManifest.xml as the library might be using APIs not available in 15
Suggestion: use a compatible library with a minSdk of at most 15,
or increase this project's minSdk version to at least 16,
or use tools:overrideLibrary="com.andremion.counterfab" to force usage (may lead to runtime failures)
Let me know if I can provide anything else in order to better understand the issues, I am still a nobb at android ;)