Non-resolvable import POM: Failure to find org.springframework.cloud:spring-cloud-dependencies

问题描述：在本地的缓存仓库中找不到org.springframework.cloud:spring-cloud-dependencies这个依赖

[ERROR] Non-resolvable import POM: Failure to find org.springframework.cloud:spring-cloud-dependencies:pom:
Finchley.RC1 in http://maven.aliyun.com/nexus/content/groups/public/ was cached in the local repository, 
resolution will not be reattempted until the update interval of alimaven has elapsed or updates are forced
 @ com.leyou.parent:leyou:1.0-SNAPSHOT, D:\idea_project\studyproject\leyou\pom.xml, line 44, column 25
 @ 

一般出现这个问题说明maven配置的镜像中没有这个依赖，

解决办法：更换spring-cloud的版本。

原来的pom配置

spring-cloud版本：Finchley.RC1

spring-boot版本：2.0.4.RELEASE

<parent>
	<groupId>org.springframework.boot</groupId>
	<artifactId>spring-boot-starter-parent</artifactId>
	<version>2.0.3.RELEASE</version>
	<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <!-- SpringCloud版本，是最新的F系列 -->
        <spring-cloud.version>Finchley.RC1</spring-cloud.version>
        <mybatis.starter.version>1.3.2</mybatis.starter.version>
        <mapper.starter.version>2.0.2</mapper.starter.version>
        <druid.starter.version>1.1.9</druid.starter.version>
        <mysql.version>5.1.32</mysql.version>
        <pageHelper.starter.version>1.2.3</pageHelper.starter.version>
        <leyou.latest.version>1.0.0-SNAPSHOT</leyou.latest.version>
        <fastDFS.client.version>1.26.1-RELEASE</fastDFS.client.version>
    </properties>

更改配置后问题解决了，仓库里可以找得到了：

spring-cloud版本：Finchley.RELEASE

spring-boot版本：2.0.3.RELEASE

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.0.3.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>


    <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
        <java.version>1.8</java.version>
        <!-- SpringCloud版本，是最新的F系列 -->
        <spring-cloud.version>Finchley.RELEASE</spring-cloud.version>
        <mybatis.starter.version>1.3.2</mybatis.starter.version>
        <mapper.starter.version>2.0.2</mapper.starter.version>
        <druid.starter.version>1.1.9</druid.starter.version>
        <mysql.version>5.1.32</mysql.version>
        <pageHelper.starter.version>1.2.3</pageHelper.starter.version>
        <leyou.latest.version>1.0.0-SNAPSHOT</leyou.latest.version>
        <fastDFS.client.version>1.26.1-RELEASE</fastDFS.client.version>
    </properties>