Non-resolvable parent POM using Maven 3.0.3 and relativePath notation

Question

After migrating to Mavent 3.0.3 Parent poms in several Projects cannot be resolved anymore.

The Projects are structured in a default manner, so I set parent.relativePath to "../pom.xml"

superpom (located in repository)
|-rootpom (located locally: no error)
|-|-parentpom (located locally: error resolving parent)
|-|-|-module1 (located locally: error resolving parent)
|-|-|-module2 (located locally: error resolving parent)
|-|-|-module3 (located locally: error resolving parent)
|-|-|-module4 (located locally: error resolving parent)

The Error...

Non-resolvable parent POM for myGroup:myArtifactId:1.0: Failure to find myGroup:myParentArtifactId:1.0 in http://myRepo.net/archiva/repository/maven2 was cached in the local repository, resollution will not be reattempted until the update interval of maven2 has elapsed or updates are forced and 'parent.relativePath' points at wrong local POM @ myGroup:myParentArtifactId:1.0, C:\myProjectDir\parent\pom.xml, line x, column y -> [Help 2]

... seems to indicate that the pom was searched for in the repository, so I wonder why the pom was not found locally before looked elsewhere.

I have read that maven3 might get confused when several repositories are defined in the settings.xml, but that was always when searching for a pom inside repositories and not locally.

update

Up until now we did execute the maven build on the parent-project level (parentpom) - a fact which I did not know was important, since maven2 completed successfully until now.

When using maven3 this seems to be of importance. When executing maven3 on the root-project level (rootpom) the build finishes successfully. So my immediate problem is solved.

Since I don't necessarily want to answer my own question maybe someone can explain why maven3 behaves this way now or why the old approach was wrong.

Answer 1

Make sure you Double-Check that the version you refer to in the child-pom is the same as that in the parent-pom. For me, I'd bumped version in the parent and had it as 3.1.0.0-RELEASE, but in the child-pom, I was still referring to the previous version via relativePath, and had it defined as 2.0.0.0-SNAPSHOT. It did not make any difference if I included just the parent directory, or had the "pom.xml" appended to the directory:

    <parent>        
    <artifactId>eric-project-parent</artifactId>
    <groupId>com.eric.common</groupId>
     <!-- Should be 3.1.0.0-RELEASE -->
    <version>2.0.0.0-SNAPSHOT</version>     
    <relativePath>
                ../../EricParentAsset/projects/eric-project-parent</relativePath>           
</parent>