폼 추가 부터 안되네요...ㅠㅠ

1. 우선, 스터디 환경은 다음과 같습니다.

<parent>
   <groupId>org.springframework.boot</groupId>
   <artifactId>spring-boot-starter-parent</artifactId>
   <version>2.4.0</version>
   <relativePath/> <!-- lookup parent from repository -->
</parent>

2. 일단 강의 처럼 디펜던시 아래와 같이 추가 하면,

<dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-rest-hal-browser</artifactId>
</dependency>

3. 아래와 같이 콘솔 오류 나옵니다.

Cannot resolve org.springframework.data:spring-data-rest-hal-browser:unknown

4. 그래서 구글링 좀 해봐서 아래 처럼 버전을 넣어 봤더니 폼 등록 및 메이븐 리빌드 까진 성공했으나, 

<!-- https://mvnrepository.com/artifact/org.springframework.data/spring-data-rest-hal-browser -->
<dependency>
   <groupId>org.springframework.data</groupId>
   <artifactId>spring-data-rest-hal-browser</artifactId>
   <version>3.3.6.RELEASE</version>
</dependency>

5. 서버 기동 시 실패 했습니다.

2020-12-30 15:20:40.186 ERROR 938 --- [  restartedMain] o.s.b.d.LoggingFailureAnalysisReporter   : 

***************************

APPLICATION FAILED TO START

***************************

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    org.springframework.data.rest.core.support.UnwrappingRepositoryInvokerFactory.<init>(UnwrappingRepositoryInvokerFactory.java:54)

The following method did not exist:

    'org.springframework.plugin.core.PluginRegistry org.springframework.plugin.core.PluginRegistry.of(java.util.List)'

The method's class, org.springframework.plugin.core.PluginRegistry, is available from the following locations:

    jar:file:/Users/imdongbin/.m2/repository/org/springframework/plugin/spring-plugin-core/1.2.0.RELEASE/spring-plugin-core-1.2.0.RELEASE.jar!/org/springframework/plugin/core/PluginRegistry.class

The class hierarchy was loaded from the following locations:

    org.springframework.plugin.core.PluginRegistry: file:/Users/imdongbin/.m2/repository/org/springframework/plugin/spring-plugin-core/1.2.0.RELEASE/spring-plugin-core-1.2.0.RELEASE.jar

Action:

Correct the classpath of your application so that it contains a single, compatible version of org.springframework.plugin.core.PluginRegistry

Process finished with exit code 0

왠만하면 다 손으로 따라가고 싶어서 이리 저리 해봤는데 이번엔 영 안되네요 ㅠㅠ