Fix unity play service resolver error "Gradle failed to fetch dependencies." on mac

Hi, I am working with google player services in unity3d 2017.3.1f1 on mac, whenever I import the package I got few errors, I am good in unity but not in Android native, so please bid only if you are an expert in Unity+Android, please start your bid with I can fix it on teamviewer , Before bidding you should look into the files carefully and let me know who can do it.