[Android Error]Invoke-customs are only supported starting with Android O (--min-api 26)

Situation

라이브러리 추가 후 Rebuild 실행 후 발생된 에러 

 

Reason

Invoke-custom 은 Java 8과 호환이 되어야 한다. 
하여 에러 뿜뿜!!

 

Solution

android build.gradle(:app) 에 

compileOption 을 정의해준다. 

 android {
        compileOptions {
            sourceCompatibility 1.8
            targetCompatibility 1.8
        }
    }

 

Ref)
https://medium.com/@akhilbattula/invoke-customs-are-only-supported-starting-with-android-o-min-api-26-solution-68ac4e619ce0

Invoke-customs are only supported starting with Android O ( — min-api 26) — Solution

https://stackoverflow.com/questions/49891730/invoke-customs-are-only-supported-starting-with-android-0-min-api-26

Invoke-customs are only supported starting with android 0 --min-api 26