Sonarqube maven plugin : "The 'report' parameter is missing" when analyzing Maven Project - sonarqube

Question

My error log
I'm using sonarqube 6.7.1 to analyze my maven project (maven 3.5.2) & sonar-maven 3.4.0.905. I keep getting the error "The 'report' parameter is missing". I did researches for hours but looks like almost no one has had this error. Did anyone have this same issue?
[ERROR] Failed to execute goal org.sonarsource.scanner.maven:sonar-maven-plugin:3.4.0.905:sonar (default-cli) on project university-service: The 'report' parameter is missing
Here is my POM.xml file:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.hoang.universityservice</groupId>
<artifactId>university-service</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>university-service</name>
<url>http://maven.apache.org</url>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.2.RELEASE</version>
</parent>
<properties>
<java.version>1.8</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<optional>true</optional>
</dependency>
</dependencies>

Answer 1

In our situation, the root cause was on the Sonar server:
sonar.log:Caused by: java.io.IOException: No space left on device
Freeing up disk space solved the issue.

Answer 2

If you ever get this error, all you have to do is to upgrade to Java SDK 9