m2e 不支持 maven-dependency-plugin(目标“copy-dependencies"、“unpack") [英] maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e

问题描述

我有一个相当简单的 Maven 项目:

<依赖项>...</依赖项><构建><插件><插件><groupId>org.apache.maven.plugins</groupId><artifactId>maven-dependency-plugin</artifactId><version>2.4</version><执行><执行><id>复制依赖</id><phase>包</phase><目标><目标>复制依赖</目标></目标><配置><outputDirectory>${project.build.directory}/dependencies</outputDirectory></配置></执行></执行></插件></插件></build></项目>

但是，我在 m2eclipse 中得到以下错误:

描述资源路径位置类型m2e 不支持 maven-dependency-plugin(目标copy-dependencies"、unpack").pom.xml/jasperreports-test line 60 Maven 项目构建生命周期映射问题

为什么我在意 m2eclipse 不支持"这个任务?Maven 做到了，这就是我真正关心的.我怎样才能让我的项目中的这个错误消失?

解决方案

这似乎是一个已知问题.您可以指示 m2e 忽略这一点.

选项 1:pom.xml

在您的 <build/> 标签中添加以下内容:

<插件><!-- 忽略/执行插件执行--><插件><groupId>org.eclipse.m2e</groupId><artifactId>生命周期映射</artifactId><version>1.0.0</version><配置><lifecycleMappingMetadata><插件执行><!-- 复制依赖插件--><插件执行><pluginExecutionFilter><groupId>org.apache.maven.plugins</groupId><artifactId>maven-dependency-plugin</artifactId><versionRange>[1.0.0,)</versionRange><目标><目标>复制依赖</目标></目标></pluginExecutionFilter><动作><忽略/></动作></pluginExecution></pluginExecutions></lifecycleMappingMetadata></配置></插件></plugins></pluginManagement>

您将需要在此之后对您的项目执行 Maven... -> 更新项目配置.

阅读更多:http://wiki.eclipse.org/M2E_plugin_execution_not_covered#m2e_maven_plugin_coverage_status

选项 2:全局 Eclipse 覆盖

为避免更改 POM 文件，可以通过 Eclipse 设置将忽略覆盖应用于整个工作区.

将此文件保存在磁盘上的某个位置:https://gist.github.com/maksimov/8906462>

在 Eclipse/Preferences/Maven/Lifecycle Mappings 中浏览到此文件并单击 OK:

I have a fairly simple Maven project:

<project>
    <dependencies>
        ...
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-dependency-plugin</artifactId>
                <version>2.4</version>
                <executions>
                    <execution>
                        <id>copy-dependencies</id>
                        <phase>package</phase>
                        <goals>
                            <goal>copy-dependencies</goal>
                        </goals>
                        <configuration>
                            <outputDirectory>${project.build.directory}/dependencies</outputDirectory>
                        </configuration>    
                    </execution>
                </executions>
            </plugin>
        </plugins>
    </build>
</project>

However, I get the following error in m2eclipse:

Description Resource    Path    Location    Type
maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e. pom.xml  /jasperreports-test line 60 Maven Project Build Lifecycle Mapping Problem

Why do I care if m2eclipse doesn't "support" this task? Maven does, and that's all I really care about. How can I get this error in my project to go away?

解决方案

It seems to be a known issue. You can instruct m2e to ignore this.

Option 1: pom.xml

Add the following inside your <build/> tag:

<pluginManagement>
<plugins>
    <!-- Ignore/Execute plugin execution -->
    <plugin>
        <groupId>org.eclipse.m2e</groupId>
        <artifactId>lifecycle-mapping</artifactId>
        <version>1.0.0</version>
        <configuration>
            <lifecycleMappingMetadata>
                <pluginExecutions>
                    <!-- copy-dependency plugin -->
                    <pluginExecution>
                        <pluginExecutionFilter>
                            <groupId>org.apache.maven.plugins</groupId>
                            <artifactId>maven-dependency-plugin</artifactId>
                            <versionRange>[1.0.0,)</versionRange>
                            <goals>
                                <goal>copy-dependencies</goal>
                            </goals>
                        </pluginExecutionFilter>
                        <action>
                            <ignore />
                        </action>
                    </pluginExecution>
                </pluginExecutions>
            </lifecycleMappingMetadata>
        </configuration>
    </plugin>
   </plugins></pluginManagement>

You will need to do Maven... -> Update Project Configuration on your project after this.

Read more: http://wiki.eclipse.org/M2E_plugin_execution_not_covered#m2e_maven_plugin_coverage_status

Option 2: Global Eclipse Override

To avoid changing your POM files, the ignore override can be applied to the whole workspace via Eclipse settings.

Save this file somewhere on the disk: https://gist.github.com/maksimov/8906462

In Eclipse/Preferences/Maven/Lifecycle Mappings browse to this file and click OK:

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