Project build error: 'dependencies.dependency.version' for org.springframework.cloud:spring-cloud-starter-eureka-server:jar is missing

As indicated in my comment, some starters were renamed: https://github.com/spring-projects/spring-cloud/wiki/Spring-Cloud-Edgware-Release-Notes

A number of starters did not follow normal Spring Cloud naming conventions. In Edgware, use of the deprecated starter will log a warning with the name of the new starter to use in its place.

So change: spring-cloud-starter-eureka-server to spring-cloud-starter-netflix-eureka-server.

Add the following in to your pom.xml  

<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <spring-cloud.version>Hoxton.RC1</spring-cloud.version>
</properties>

    <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
    </dependency>

    OR

    <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
    </dependency>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>

    <repositories>
        <repository>
            <id>spring-milestones</id>
            <name>Spring Milestones</name>
            <url>https://repo.spring.io/milestone</url>
        </repository>
    </repositories>

Add the following int the Pom.xml

<properties>
        <java.version>1.8</java.version>
         <spring-cloud.version>Greenwich.RELEASE</spring-cloud.version>
 </properties>

<dependencies>
<dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-webflux</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

    </dependencies>

    <dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>${spring-cloud.version}</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>