使用m2e 0.12, Sonatype的最新版本。

我在使用indigo和一个需要从XSD生成Java源代码的项目时遇到过同样的问题。 我可以通过提供缺少的生命周期映射来修复它，如本页所述

我在maven节俭插件中遇到了完全相同的问题。这是我的解决方案，不需要搞砸你的pom.xml:

使用命令行maven实用程序mvn mvn eclipse:月食 创建一个eclipse项目 在eclipse中导入项目。记得使用 文件>导入>通用>现有项目到工作区 将项目添加到工作区中。

这应该能解决问题。

改变

<artifactId>aspectj-maven-plugin</artifactId>
<version>1.2</version>

into

<artifactId>aspectj-maven-plugin</artifactId>
<version>1.3</version>

帮我解决了问题。

见https://www.eclipse.org/m2e/documentation/m2e-execution-not-covered.html。

To solve some long-standing issues, m2e 1.0 requires explicit instructions what to do with all Maven plugins bound to "interesting" phases of project build lifecycle. We call these instructions "project build lifecycle mapping" or simply "lifecycle mapping" because they define how m2e maps information from project pom.xml file to Eclipse workspace project configuration and behaviour during Eclipse workspace build. Project build lifecycle mapping configuration can be specified in project pom.xml, contributed by Eclipse plugins and there is also default configuration for some commonly used Maven plugins shipped with m2e. We call these "lifecycle mapping metadata sources". m2e will create error marker like below for all plugin executions that do not have lifecycle mapping in any of the mapping metadata sources. Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-antrun-plugin:1.3:run (execution: generate-sources-input, phase: generate-sources) m2e matches plugin executions to actions using combination of plugin groupId, artifactId, version range and goal. There are three basic actions that m2e can be instructed to do with a plugin execution -- ignore, execute and delegate to a project configurator.

转到workspace/rtc-ws/.metadata/.plugins/org.eclipse.m2e.core/lifecycle-mapping-metadata.xml，然后创建lifecycle-mapping-metadata.xml文件，并按如下方式粘贴并重新加载配置

如果你正在使用Eclipse 4.2，在映射方面有问题，并且不想把乱七八糟的东西放到pom.xml中，创建一个新的文件Lifecycle -mapping-metadata.xml，在Windows中配置它-> Preferences -> Lifecycle mapping(不要忘记在每次更改这个文件后按Reload workspace Lifecycle mappings metadata !)下面是基于eclipse/plugins/org.eclipse.m2e.lifecyclemapping. defaults_3 .2.0.20120903-1050.jar/ lifeccycle -mapping-metadata.xml的示例

<?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>

        <pluginExecution>
            <pluginExecutionFilter>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-antrun-plugin</artifactId>
                <versionRange>[1.7,)</versionRange>
                <goals>
                    <goal>run</goal>
                </goals>
            </pluginExecutionFilter>
            <action>
                <ignore />
            </action>
        </pluginExecution>


        <pluginExecution>
            <pluginExecutionFilter>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-checkstyle-plugin</artifactId>
                <versionRange>[2.8,)</versionRange>
                <goals>
                    <goal>check</goal>
                </goals>
            </pluginExecutionFilter>
            <action>
                <ignore />
            </action>
        </pluginExecution>

    </pluginExecutions>
</lifecycleMappingMetadata>