title: Clean install some modules with maven results in an error: Error building POM (may not be this project's POM)
body: <p>At the path C:\PMX\checkout\components\promomax-all_webapps_component I have this this file: pom-aggregator-packaging.xml</p>
  
  <p>The file pom-aggregator-packaging.xml contains some modules checked out with turtoiseCVS.</p>
  
  <p>When I go in cmd to the path C:\PMX\checkout\components\promomax-all_webapps_component and type <strong>mvn -f pom-aggregator-packaging.xml clean install</strong> the returned error is:</p>
  
  <pre><code>+ 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.&lt;init&gt;(FileInputStream.java:146)
      at hidden.org.codehaus.plexus.util.xml.XmlReader.&lt;init&gt;(XmlReader.java:124)
      at hidden.org.codehaus.plexus.util.xml.XmlStreamReader.&lt;init&gt;(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: &lt; 1 second
  [INFO] Finished at: Fri Oct 02 15:46:09 EEST 2015
  [INFO] Final Memory: 6M/243M
  [INFO] ------------------------------------------------------------------------
  </code></pre>
  
  <p>The content of pom-aggregator-packaging.xml is:</p>
  
  <pre><code>&lt;project&gt;
    &lt;modelVersion&gt;4.0.0&lt;/modelVersion&gt;
    &lt;groupId&gt;com.company_name.app_name&lt;/groupId&gt;
    &lt;artifactId&gt;monitoring-pom-aggregator&lt;/artifactId&gt;
    &lt;version&gt;1.0.0&lt;/version&gt;
    &lt;packaging&gt;pom&lt;/packaging&gt;
    &lt;name&gt;NameOfTheApp Engine Server Component Pom Aggregator&lt;/name&gt;
    &lt;modules&gt;
      ...
      &lt;module&gt;../../bundles/promomax-spring_aspects&lt;/module&gt; 
      ... 
    &lt;/modules&gt;
  &lt;/project&gt;
  </code></pre>
  
  <p><strong>Could you, please, help me to fix this error?</strong></p>
  
  <p>If in pom-aggregator-packaging.xml I change the </p>
  
  <p><code>&lt;module&gt;../../bundles/promomax-spring_aspects&lt;/module&gt;</code> giving the absolute path:</p>
  
  <pre><code>&lt;module&gt;C:/PMX/checkout/components/promomax-all_webapps_component/bundles/promomax-spring_aspects&lt;/module&gt;
  </code></pre>
  
  <p>and then again I run the command <strong>mvn -f pom-aggregator-packaging.xml clean install</strong>, the new error is: </p>
  
  <pre><code>[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] ------------------------------------------------------------------------
  </code></pre>