maven快速入门番外篇——运行maven项目时报错：Failed to execute goal on project ...

╰+攻爆jí腚メ 2023-06-25 07:54 70阅读 0赞

# 问题描述 #

从下图可以看出，我的项目结构是一个父工程与多个子工程。  
![在这里插入图片描述][20191227102244754.png]  
其中，crm-web子工程依赖于crm-service子工程，crm-service子工程又依赖于crm-dao子工程。当我通过crm-web子工程的pom.xml文件中配置的tomcat7插件来运行crm-web子工程时，给我报错了，eclipse控制台打印出了如下错误提示信息。

[INFO] Scanning for projects...
    [INFO] 
    [INFO] -----------------------< com.meimeixia:crm-web >------------------------
    [INFO] Building crm-web 0.0.1-SNAPSHOT
    [INFO] --------------------------------[ war ]---------------------------------
    [INFO] 
    [INFO] >>> tomcat7-maven-plugin:2.2:run (default-cli) > process-classes @ crm-web >>>
    [WARNING] The POM for com.meimeixia:crm-service:jar:0.0.1-SNAPSHOT is missing, no dependency information available
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time:  0.352 s
    [INFO] Finished at: 2019-12-27T09:36:17+08:00
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal on project crm-web: Could not resolve dependencies for project com.meimeixia:crm-web:war:0.0.1-SNAPSHOT: Could not find artifact com.meimeixia:crm-service:jar:0.0.1-SNAPSHOT -> [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/DependencyResolutionException

# 出错原因 #

为什么会报上面这样的错误呢？最后发现原来是自己没有首先对父工程进行install。

# 解决办法 #

解决这个问题就变得很简单了，在父工程创建完成后对父工程进行install，将父工程发布到本地仓库，以方便子工程继承。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9saWF5dW4uYmxvZy5jc2RuLm5ldA_size_16_color_FFFFFF_t_70]  
**结论：在父工程下有的子工程在首次运行前应该先对父工程进行install。**

[20191227102244754.png]: https://img-blog.csdnimg.cn/20191227102244754.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9saWF5dW4uYmxvZy5jc2RuLm5ldA_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20191227102247201.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9saWF5dW4uYmxvZy5jc2RuLm5ldA==,size_16,color_FFFFFF,t_70