ANDROID STUDIO 3.0 upgrade : Error:Could not resolve all files for configuration ':app:xxxxxxxDebugCompileClasspath'

Question

I found this warning after upgrading the latest android studio stable version

Error:Could not resolve all files for configuration \':app:xxxxxxxDebugCompil

Answer 1

change dependency declaration

from

compile files('libs/commons-lang-2.4.jar')

to

implementation files('libs/commons-lang-2.4.jar')