1.找到eclipse目录：

Plugin execution not covered by lifecycle configuration: org.zeroturnaround:jrebel-maven-plugin:1.1._xml

查看目录下是否有lifecycle-mapping-metadata.xml文件，若没有新建，内容如下：

<?xml version="1.0" encoding="UTF-8"?>
 <lifecycleMappingMetadata>
   <pluginExecutions>
     <pluginExecution>
       <pluginExecutionFilter>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>buildnumber-maven-plugin</artifactId>
         <goals>
           <goal>create-timestamp</goal>
         </goals>
         <versionRange>[0.0,)</versionRange>
       </pluginExecutionFilter>
       <action>
         <ignore />
       </action>
     </pluginExecution>    <pluginExecution>
       <pluginExecutionFilter>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
         <goals>
           <goal>list</goal>
         </goals>
         <versionRange>[0.0,)</versionRange>
       </pluginExecutionFilter>
       <action>
         <ignore />
       </action>
     </pluginExecution>    <pluginExecution>
       <pluginExecutionFilter>
         <groupId>org.zeroturnaround</groupId>
         <artifactId>jrebel-maven-plugin</artifactId>
         <goals>
           <goal>generate</goal>
         </goals>
         <versionRange>[0.0,)</versionRange>
       </pluginExecutionFilter>
       <action>
         <ignore />
       </action>
     </pluginExecution>    <pluginExecution>
       <pluginExecutionFilter>
         <groupId>org.codehaus.mojo</groupId>
         <artifactId>gwt-maven-plugin</artifactId>
         <goals>
           <goal>compile</goal>
         </goals>
         <versionRange>[0.0,)</versionRange>
       </pluginExecutionFilter>
       <action>
         <ignore />
       </action>
     </pluginExecution>    <pluginExecution>
       <pluginExecutionFilter>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-dependency-plugin</artifactId>
         <goals>
           <goal>copy-dependencies</goal>
           <goal>unpack</goal>
         </goals>
         <versionRange>[0.0,)</versionRange>
       </pluginExecutionFilter>
       <action>
         <ignore />
       </action>
     </pluginExecution>  </pluginExecutions>
 </lifecycleMappingMetadata>

2.再次打开window>Preferences>maven> Lifecycle Mappings

Plugin execution not covered by lifecycle configuration: org.zeroturnaround:jrebel-maven-plugin:1.1._apache_02

点击Reload 红框中按钮，再点击apply即可

3.maven update 之后，报错就解决了