无法启动 springboot-admin:java.lang.NoClassDefFoundError: org/springframework/cloud/netflix/zuul/ZuulServerAutoConfiguration

Question

当我尝试启动 springboot-admin 时，它抛出：java.lang.NoClassDefFoundError: org/springframework/cloud/netflix/zuul/ZuulServerAutoConfiguration 是我的版本冲突吗？

SpringBoot 版本：2.1.9.RELEASE

SpringCloud 版本：Greenwich.SR3

SpringBootAdmin 版本：2.1.5

我的主类代码：

@Configuration
@EnableAutoConfiguration
@EnableAdminServer
@EnableDiscoveryClient
public class SpringbootAdminApplication {

    public static void main(String[] args) {
        SpringApplication.run(SpringbootAdminApplication.class, args);
    }

}

我的maven代码：

 <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
<!-- It's partly dependent-->
<dependency>
            <groupId>de.codecentric</groupId>
            <artifactId>spring-boot-admin-starter-server</artifactId>
            <version>2.1.5</version>
        </dependency>
 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>
 <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-web</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-eureka</artifactId>
        </dependency>
 <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>

我的配置文件：

spring:
  application:
    name: spring-boot-admin
eureka:
  client:
    service-url:
      defaultZone: http://localhost:8010/eureka
server:
  port: 8083

我要启动应用程序

Answer 1

将你的 spring-cloud 依赖项移动到 dependencyManagement 标签下，然后尝试，

<dependencyManagement>
        <dependencies>
            <dependency>
                <groupId>org.springframework.cloud</groupId>
                <artifactId>spring-cloud-dependencies</artifactId>
                <version>Greenwich.SR3</version>
                <type>pom</type>
                <scope>import</scope>
            </dependency>
        </dependencies>
    </dependencyManagement>