Android Studio. Error after update when using external project

Hello.

In the process of trying to use an external project, I updated it because my Android (latest version) is lower than the sdk that can be supported.

But like the image below,

Configuration 'compile' is obsolete and has been replaced with 'implementation'. It will be removed at the end of 2018

An error, such as an error occurred.I don't know what the problem is and how to solve it.