mvn package 오류가 뜨는데 원인을 모르겠습니다.

C:\Users\kjs50\IdeaProjects\SpringBootStart>mvn package

C:\Users\kjs50\IdeaProjects\SpringBootStart>set JAVA_HOME=D:\01.app\java\jdk1.6.0_31

[INFO] Scanning for projects...

Downloading: http://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-st

arter-parent/2.0.3.RELEASE/spring-boot-starter-parent-2.0.3.RELEASE.pom

[ERROR] The build could not read 1 project -> [Help 1]

[ERROR]

[ERROR]   The project org.example:SpringBootStart:1.0-SNAPSHOT (C:\Users\kjs50\IdeaProje

cts\SpringBootStart\pom.xml) has 1 error

[ERROR]     Non-resolvable parent POM: Could not transfer artifact org.springframework.b

oot:spring-boot-starter-parent:pom:2.0.3.RELEASE from/to central (http://repo.maven.apac

he.org/maven2): Failed to transfer file: http://repo.maven.apache.org/maven2/org/springf

ramework/boot/spring-boot-starter-parent/2.0.3.RELEASE/spring-boot-starter-parent-2.0.3.

RELEASE.pom. Return code is: 501 , ReasonPhrase:HTTPS Required. and 'parent.relativePath

' points at wrong local POM @ line 17, column 13 -> [Help 2]

[ERROR]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR]

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/ProjectBuildingException

[ERROR] [Help 2] http://cwiki.apache.org/confluence/display/MAVEN/UnresolvableModelException