Maven Error: Could not calculate build plan

I recently had to change computre and had some trouble with Maven.

I got the following message on Eclipse 3.5.2:

Could not calculate build plan: Failure to transfer org.apache.maven.plugins:maven-resources-plugin:pom:2.4.3 from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.4.3 from/to central (http://repo1.maven.org/maven2): Failed to transfer http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.4.3/maven-resources-plugin-2.4.3.pom. Error code 400, Bad Request jsimpleutils Unknown Maven Problem

On the following post http://vikashazrati.wordpress.com/2010/06/26/could-not-calculate-build-plan-missing-maven-resources-pluginmaven-plugin2-4-1/ a guy pointed out the he could find the directory but it had a filed with the extension .lastUpdated.

The solution was to delete the file with the .lastUpdated extension (maven-resources-plugin-2.4.1.maven-plugin.lastUpdated) and ran from eclipse maven->Update Project Configuration and the problem was resolved.