Plugin org.springframework.boot:spring-boot-maven-plugin:1.3.0.BUILD-SNAPSHOT or one of its dependencies could not be resolved

Add the version part,it works for me

<build>
    <plugins>
        <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
            <version>1.2.7.RELEASE</version>
        </plugin>
    </plugins>
</build>

You must add following excerpt to pom.xml for compiling with SNAPSHOTS and MILESTONES:

    <repositories>
        <repository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
            <snapshots><enabled>true</enabled></snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
        </repository>
    </repositories>
    <pluginRepositories>
        <pluginRepository>
            <id>spring-snapshots</id>
            <url>http://repo.spring.io/snapshot</url>
        </pluginRepository>
        <pluginRepository>
            <id>spring-milestones</id>
            <url>http://repo.spring.io/milestone</url>
         </pluginRepository>
    </pluginRepositories>