안녕하세요 행님들 카카오 뉴톤 6.1.4 쓰려고 하는데 오류가 발생했습니다 ㅠㅠ

Question

Executing tasks: [:app:assembleDebug] in project C:\Users\KEYONIT-DEV-PC2\Desktop\kakao-android-sdk-speech-6.1.4 (1)\kakao-android-sdk-speech-6.1.4

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:processDebugResources'.
> Could not resolve all task dependencies for configuration ':app:debugRuntimeClasspath'.
   > Could not resolve com.kakao.sdk:newtone:6.1.4.
     Required by:
         project :app
      > Could not resolve com.kakao.sdk:newtone:6.1.4.
         > Could not get resource 'http://repo.maven.apache.org/maven2/com/kakao/sdk/newtone/6.1.4/newtone-6.1.4.pom'.
            > Could not HEAD 'http://repo.maven.apache.org/maven2/com/kakao/sdk/newtone/6.1.4/newtone-6.1.4.pom'. Received status code 501 from server: HTTPS Required

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 4s

 

이렇게 오류가 뜨는데 저기 maven에 소스가 없어서 일어나는 오류인가요????