It's so strange It doesn't work. Let me show you how I build my Gradle (the part where you set dependencies):
android {
compileSdkVersion 26
buildToolsVersion "26.0.0"
defaultConfig {
applicationId "com.app.yourapp"
minSdkVersion 22
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
vectorDrawables.useSupportLibrary = true
sourceSets {
main {
res.srcDirs =
[
'src/main/res/layouts/activities',
'src/main/res/layouts/fragments',
'src/main/res/layouts/content',
'src/main/res/layouts',
'src/main/res'
]
}
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
dependencies {....
and that's It.
Hope I've been helpful.