刚下载一个开源项目源码,用maven编译发现报错:
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce (enforce-versions) on project spark-parent_2.11: Some Enforcer rules have failed. Look above for specific messages explaining why the rule failed. -> [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
根据报错提示信息得出是enforce插件检测规则失败,并且这里提供了一个官方解决连接,进入看看MojoExecutionException解释:
说明这个不是maven本身报错,而是它的插件报错了,并且告诉我们要去看一下插件的文档,提供了maven插件文档的链接,进入plugin index找到enforce插件,先看看这个插件是干什么的:
这里的对enforcer的解释是,这是做环境约束检查用,到pom.xml中找到对应的enforce插件:
org.apache.maven.plugins maven-enforcer-plugin 1.4.1 enforce-versions enforce ${maven.version} ${java.version} org.jboss.netty org.codehaus.groovy true
这里对java.version和maven.version做了约束,把配置改成本地对应的版本号即可。
参考:
https://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException
http://maven.apache.org/plugins/