使用Maven全新安装某些模块会导致错误:构建POM时出错(可能不是该项目的POM) [英] Clean install some modules with maven results in an error: Error building POM (may not be this project's POM)
问题描述
在路径C:\ PMX \ checkout \ components \ promomax-all_webapps_component中，我有以下文件:pom-aggregator-packaging.xml
At the path C:\PMX\checkout\components\promomax-all_webapps_component I have this this file: pom-aggregator-packaging.xml
文件pom-aggregator-packaging.xml包含一些使用turtoiseCVS检出的模块.
The file pom-aggregator-packaging.xml contains some modules checked out with turtoiseCVS.
当我进入cmd路径C:\ PMX \ checkout \ components \ promomax-all_webapps_component并键入 mvn -f pom-aggregator-packaging.xml clean install 时，返回的错误是:
When I go in cmd to the path C:\PMX\checkout\components\promomax-all_webapps_component and type mvn -f pom-aggregator-packaging.xml clean install the returned error is:
+ Error stacktraces are turned on.
[INFO] Scanning for projects...
[INFO] ------------------------------------------------------------------------
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error building POM (may not be this project's POM).
Project ID: unknown
Reason: Could not find the model file 'C:\PMX\checkout\bundles\promomax-spring_aspects'. for project unknown
[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.reactor.MavenExecutionException: Could not find the model file 'C:\PMX\checkout\bundles\promomax-spring_aspects'. for project unknown
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:404)
at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:272)
at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:138)
at org.apache.maven.cli.MavenCli.main(MavenCli.java:362)
at org.apache.maven.cli.compat.CompatibleMain.main(CompatibleMain.java:60)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.project.ProjectBuildingException: Could not find the model file 'C:\PMX\checkout\bundles\promomax-spring_aspects'. for project unknown
at org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1575)
at org.apache.maven.project.DefaultMavenProjectBuilder.buildFromSourceFileInternal(DefaultMavenProjectBuilder.java:506)
at org.apache.maven.project.DefaultMavenProjectBuilder.build(DefaultMavenProjectBuilder.java:200)
at org.apache.maven.DefaultMaven.getProject(DefaultMaven.java:604)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:487)
at org.apache.maven.DefaultMaven.collectProjects(DefaultMaven.java:560)
at org.apache.maven.DefaultMaven.getProjects(DefaultMaven.java:391)
... 12 more
Caused by: java.io.FileNotFoundException: C:\PMX\checkout\bundles\promomax-spring_aspects (The system cannot find the file specified)
at java.io.FileInputStream.open(Native Method)
at java.io.FileInputStream.<init>(FileInputStream.java:146)
at hidden.org.codehaus.plexus.util.xml.XmlReader.<init>(XmlReader.java:124)
at hidden.org.codehaus.plexus.util.xml.XmlStreamReader.<init>(XmlStreamReader.java:67)
at hidden.org.codehaus.plexus.util.ReaderFactory.newXmlReader(ReaderFactory.java:118)
at org.apache.maven.project.DefaultMavenProjectBuilder.readModel(DefaultMavenProjectBuilder.java:1570)
... 18 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Fri Oct 02 15:46:09 EEST 2015
[INFO] Final Memory: 6M/243M
[INFO] ------------------------------------------------------------------------
pom-aggregator-packaging.xml的内容为:
The content of pom-aggregator-packaging.xml is:
<project>
<modelVersion>4.0.0</modelVersion>
<groupId>com.company_name.app_name</groupId>
<artifactId>monitoring-pom-aggregator</artifactId>
<version>1.0.0</version>
<packaging>pom</packaging>
<name>NameOfTheApp Engine Server Component Pom Aggregator</name>
<modules>
...
<module>../../bundles/promomax-spring_aspects</module>
...
</modules>
</project>
能否请您帮我解决此错误?
如果在pom-aggregator-packaging.xml中，我更改了
If in pom-aggregator-packaging.xml I change the
<module>../../bundles/promomax-spring_aspects</module>给出绝对路径:
<module>C:/PMX/checkout/components/promomax-all_webapps_component/bundles/promomax-spring_aspects</module>
然后再次运行命令 mvn -f pom-aggregator-packaging.xml全新安装，新的错误是:
and then again I run the command mvn -f pom-aggregator-packaging.xml clean install, the new error is:
[ERROR] FATAL ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Unable to canonicalize file name C:\PMX\checkout\components\promomax-all_webapps_component\C:\PMX\checkout\components\promomax-all_webapps_component\bundles\promomax-spring_aspects
The filename, directory name, or volume label syntax is incorrect
[INFO] ------------------------------------------------------------------------
推荐答案
请确保您要替换
<module>../../bundles/promomax-spring_aspects</module>
使用
<module>../../components/promomax-all_webapps_component/bundles/promomax-spring_aspects</module>
它将起作用.
但是您的设置对我来说似乎并不干净.通常从父POM引用模块，该POM应该位于子pom的更高级别(文件系统)上.
But your setup does not seem clean at all to me. Referring to modules is usually done from a parent POM which should reside on a higher level (file system) than the child poms.
类似
- myproject
- 我的模块1
- pom.xml
- myproject
- my module1
- pom.xml
- pom.xml
除非您处于父/子上下文中，否则您不应依赖相对路径.
You should not depend on relative paths unless you're in a parent/child context.
进一步阅读: https://stackoverflow.com/a/10453063/190596
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- my module1
- 我的模块1
