You put statements in the wrong places. Here's how to fix it:
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
This line should be in this build.gradle, but inside allprojects { repositories { ... } }, and so:
allprojects {
repositories {
jCenter()
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}
}
, dependencies { ... } .
app build.gradle. , dependencies { ... } (, AppCompat).
dependency { ... }:
compile 'org.lucasr.twowayview:core:1.0.0-SNAPSHOT@aar'
compile 'org.lucasr.twowayview:layouts:1.0.0-SNAPSHOT@aar'