It looks like you are using Maven 3 but the example is asking for a
version 2 of Maven or vice versa.
Try changing your POM to require the version of Maven that you are in
fact using.
Ron
On 25/06/2011 4:35 PM, Nick Olsen wrote:
I'm reading a book about maven. The book appears to be somewhat outdated but
it hasn't been too difficult yet.
Anyways, I've created a project using the "simple" archetype. I have not
added or edited any files. I typed "mvn install" and the following was the
output:
[INFO] Scanning for projects...
[INFO] ------------------------------
------------------------------------------
[INFO] Building Unnamed -
org.sonatype.mavenbook.simple:simple:jar:1.0-SNAPSHOT
[INFO] task-segment: [install]
[INFO]
------------------------------------------------------------------------
[INFO] [enforcer:enforce {execution: enforce-plugin-versions}]
[WARNING] Rule 1: org.apache.maven.plugins.enforcer.RequireMavenVersion
failed with message:
Detected Maven Version: 2.2.1 is not in the allowed range 3.0-RC1.
[INFO]
------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO]
------------------------------------------------------------------------
[INFO] Some Enforcer rules have failed. Look above for specific messages
explaining why the rule failed.
[INFO]
------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO]
------------------------------------------------------------------------
[INFO] Total time: 3 seconds
[INFO] Finished at: Sat Jun 25 13:19:57 PDT 2011
[INFO] Final Memory: 14M/85M
[INFO]
------------------------------------------------------------------------
What is the problem and how can I solve it?
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