[Error] java - lambda expressions are not supported in -source 1.7 [duplicate]

lambda expressions are not supported in -source 1.7 [duplicate]

원인

jdk가 맞지 않아서 발생

해결

source/binary format 을 jdk8로 변경

참고사이트

https://stackoverflow.com/questions/41823398/lambda-expressions-are-not-supported-in-source-1-7