異常： No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format <plugin-prefix>:<goal ...

pom.xml文件<build>標簽后面加上<defaultGoal>compile</defaultGoal>即可 ...

1、Eclipse集成Maven打包時報錯：[ERROR] Unknown lifecycle phase "mvn". You must specify a valid lifecycle phase or a goal in the format。 使用eclipse打包項目，右擊項目 ...

運行maven報錯： [ERROR] No goals have been specified for this build. You must specify a valid lifecycle phase or a goal in the format : or : [: ]: ...

Maven錯誤總結：錯誤LifecyclePhaseNotFoundException，Unknown lifecycle phase "mvn". You must specify a valid ...

為:spring-boot:run即可. 還有一種可能,Maven插件[Run As]-[Maven build]時並未為 ...

原因：Maven插件[Run As]-[Maven build]時並未為其指定goal或phase 解決辦法：pom中加入<build> <finalName>demo_1SpringBoot</finalName> </build> ...