template build.gradle triggers gradle warning

[wmacgyver]

in template build.gradle

these 2 lines

functionalTestCompile 'org.seleniumhq.selenium:selenium-firefox-driver:2.40.0'
functionalTestCompile 'org.gebish:geb-spock:0.9.2'

triggers the following

Attempting to change configuration ':compile' after it has been included in dependency resolution. This behaviour has been deprecated and is scheduled to be removed in Gradle 3.0
Attempting to change configuration ':testCompile' after it has been included in dependency resolution. This behaviour has been deprecated and is scheduled to be removed in Gradle 3.0