Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not find any version that matches com.android.support:multidex:26.0.+.
  Versions that do not match:
      1.0.1
      1.0.0
      1.0.3
      1.0.2

dependencies {
    configurations.all {
        resolutionStrategy.eachDependency { DependencyResolveDetails details ->
            def requested = details.requested
            if (requested.group == 'com.android.support') {
                details.useVersion '26.0.+'
            }
        }
    }
}