Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.5.6.RELEASE:repackage failed: Unable to find main class

[INFO] --- spring-boot-maven-plugin:1.5.6.RELEASE:repackage (default) @ spring-boot-starter-log ---
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.721 s
[INFO] Finished at: 2017-09-11T15:03:41+08:00
[INFO] Final Memory: 43M/291M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:1.5.6.RELEASE:repackage (default) on project spring-boot-starter-log: Execution default of goal org.springframework.boot:spring-boot-maven-plugin:1.5.6.RELEASE:repackage failed: Unable to find main class -> [Help 1]
[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/PluginExecutionException

Process finished with exit code 1

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