一：概述
mvn install后出现错误，寻找解决办法。
二：具体过程
<1>命令行使用mvn install报错
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.062 s
[INFO] Finished at: 2024-01-14T19:44:07+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (C:\Users\laiyao1314). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException
C:\Users\laiyao1314>mvn archetype：create-from-project
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.064 s
[INFO] Finished at: 2024-01-14T19:48:29+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] The goal you specified requires a project to execute but there is no POM in this directory (C:\Users\laiyao1314). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException
<2>通过·mvn archetype：create-from-project，运行后一开始没有报错，后面报错了
[INFO] Scanning for projects...
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[INFO]
[INFO] ------------------< org.apache.maven:standalone-pom >-------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 30.474 s
[INFO] Finished at: 2024-01-14T19:49:46+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:3.2.1:create-from-project (default-cli): Goal requires a project to execute but there is no POM in this directory (C:\Users\laiyao1314). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException
出现这种原因是没有创建pom
<3>创建pom
在创建 POM 之前，我们首先需要描述项目组 (groupId), 项目的唯一ID。
所有 POM 文件都需要 project 元素和三个必需字段：groupId，artifactId，version。
使用mvn help:effective-pom命令查看Super POM 默认配置
mvn help:effective-pom[ERROR] Error executing Maven.
[ERROR] 1 problem was encountered while building the effective settings
[FATAL] Non-parseable settings D:\Maven\apache-maven-3.9.6\conf\settings.xml: end tag name </settings> must be the same as start tag <profiles> from line 196 (position: TEXT seen ...</activeProfiles>\n -->\n</settings>... @269:12) @ D:\Maven\apache-maven-3.9.6\conf\settings.xml, line 269, column 12[INFO] Scanning for projects...
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[INFO]
[INFO] ------------------< org.apache.maven:standalone-pom >-------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] --------------------------------[ pom ]---------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.016 s
[INFO] Finished at: 2024-01-14T20:30:50+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-help-plugin:3.4.0:effective-pom (default-cli): Goal requires a project to execute but there is no POM in this directory (C:\Users\laiyao1314). Please verify you invoked Maven from the correct directory. -> [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/MissingProjectException