You should change the parent definition into this:
<!-- language:language-xml -->
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.2.0-RC2</version>
<relativePath/>
</parent>
Also remove the entries for repositories because you are not allowed to access milestone repositories...
And furthermore remove the entry for central this is default by Maven no need to define that manually...
Replace
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2 RELEASE</version>
</parent>
with
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.4.2.RELEASE</version>
<relativePath>../pom.xml</relativePath> <!-- lookup parent from repository -->
</parent>
