I've got a message:
All android support libraries must use the exact same version specification. Found versions 27.1.1, 26.1.0.
It appears in this line of code:
implementation 'com.android.support:appcompat-v7:27.1.1'
Does anyone know how to deal with it?
UPDATE: My dependencies are following:
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.google.android.gms:play-services-maps:15.0.1'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}