maven-dependency-plugin (goals "copy-dependencies", "unpack") is not supported by m2e.
故障排查过程:
1、eclipse已经安装maven插件, 且之前项目无问题
2、遂怀疑, maven插件可能缺失, 但由于之前项目同样用到此功能, 所以排除
3、遂在怀疑插件板本问题, 事实正确, 寤eclipse所装m2e插件来自:http://download.eclipse.org/technology/m2e/releases/, 此版本来自maven社区, 过旧,
解决方案:
1.换装官网版本:http://m2eclipse.sonatype.org/sites/m2e
2.在pom文件的< plugins>标签之前添加如下< pluginManagement>标签,此2个标签平级.如下:
org.eclipse.m2e lifecycle-mapping 1.0.0 org.apache.maven.plugins maven-dependency-plugin [2.0,) copy-dependencies org.apache.maven.plugins maven-dependency-plugin copy-dependencies package copy-dependencies ${project.build.directory}/lib false true