【maven install报错】Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile

maven install之后报的错误如下：

[INFO] Scanning for projects...[INFO] Downloading: http://xxx.xxx.xxx.xxx:xxxx/nexus/content/groups/public/DubboDemo/DubboDemo/1.0-SNAPSHOT/maven-metadata.xml[INFO] Downloading: http://xxx.xxx.xxx.xxx:xxxx/nexus/content/groups/public/DubboDemo/DubboDemo/1.0-SNAPSHOT/maven-metadata.xml[WARNING] [WARNING] Some problems were encountered while building the effective model for DubboDemo:dubbo-api:war:1.0-SNAPSHOT[WARNING] 'dependencies.dependency.(groupId:artifactId:type:classifier)' must be unique: junit:junit:jar -> version 3.8.1 vs 4.11 @ DubboDemo:DubboDemo:1.0-SNAPSHOT, D:\java\maven\maven_store\DubboDemo\DubboDemo\1.0-SNAPSHOT\DubboDemo-1.0-SNAPSHOT.pom, line 59, column 17[WARNING] [WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.[WARNING] [WARNING] For this reason, future Maven versions might no longer support building such malformed projects.[WARNING] [INFO]                                                                         [INFO] ------------------------------------------------------------------------[INFO] Building dubbo-api Maven Webapp 1.0-SNAPSHOT[INFO] ------------------------------------------------------------------------[WARNING] The POM for io.netty:netty:jar:3.10.5.Final is invalid, transitive dependencies (if any) will not be available, enable debug logging for more details[INFO] [INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ dubbo-api ---[INFO] Using 'UTF-8' encoding to copy filtered resources.[INFO] Copying 0 resource[INFO] [INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ dubbo-api ---[INFO] Changes detected - recompiling the module![INFO] Compiling 1 source file to D:\java\Workspaces\MyEclipse\dubbo-api\target\classes[INFO] ------------------------------------------------------------------------[INFO] BUILD FAILURE[INFO] ------------------------------------------------------------------------[INFO] Total time: 1.441 s[INFO] Finished at: 2017-07-26T16:39:58+08:00[INFO] Final Memory: 7M/17M[INFO] ------------------------------------------------------------------------[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project dubbo-api: Fatal error compiling: 无效的目标版本： 1.8 -> [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/MojoExecutionException

解决办法：

pom.xml文件中加入如下配置：

<build>    <plugins>    <!-- 解决本地的编译问题：maven找不到jdk 将jre中的这两个jar复制到jdk中 -->        <plugin>            <groupId>org.apache.maven.plugins</groupId>            <artifactId>maven-compiler-plugin</artifactId>            <version>3.1</version>            <configuration>                <source>1.6</source>                <target>1.6</target>                <compilerArguments>                    <verbose />                    <bootclasspath>${java.home}/lib/rt.jar;${java.home}/lib/jce.jar</bootclasspath>                </compilerArguments>            </configuration>        </plugin>    </plugins></build>