Question

I have setup Maven project locally without eclipse, it is completed succefully.
Now i have downloaded Eclipse indgo 3.7.0. Since Eclipse-indigo is having m2e(maven 2 eclipse )plugin enabled it by

Eclipse->help->install new software->work with(Indigo – http://download.eclipse.org/releases/indigo)->General purpose tools->m2e(check) and install.

in eclipse added project as as maven project, but i am getting error while running pom.xml file:

Downloading: http://mirrors.ibiblio.org/pub/mirrors/maven2/org/apache/maven/plugins/maven-resources-plugin/2.4.3/maven-resources-plugin-2.4.3.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 0.625s
[INFO] Finished at: Thu Sep 15 12:33:01 CEST 2011
[INFO] Final Memory: 5M/15M
[INFO] ------------------------------------------------------------------------
[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.4.3 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.4.3: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.4.3 from/to ibiblio.org (http://mirrors.ibiblio.org/pub/mirrors/maven2): null to http://mirrors.ibiblio.org/pub/mirrors/maven2/org/apache/maven/plugins/maven-resources-plugin/2.4.3/maven-resources-plugin-2.4.3.pom: UnresolvedAddressException -> [Help 1]
[ERROR] 

this is m2e plugin issue, how can i solve this error?

also getting following error while importing exsisting maven project to eclipse:

Could not calculate build plan
Plugin org.apache.maven.plugins:maven-resources-plugin:2.4.1 or one of its dependencies 
could not be resolved: Transfer error: null
org.apache.maven.plugins:maven-resources-plugin:maven-plugin:2.4.1

from the specified remote repositories:
ibiblio.org (http://mirrors.ibiblio.org/pub/mirrors/maven2, releases=true, snapshots=false)
Description Resource    Path    Location    Type
Could not calculate build plan: Failure to transfer org.apache.maven.plugins:maven-resources-plugin:pom:2.4.3 
    from http://mirrors.ibiblio.org/pub/mirrors/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of ibiblio.org 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 ibiblio.org 
    (http://mirrors.ibiblio.org/pub/mirrors/maven2): null to http://mirrors.ibiblio.org/pub/mirrors/maven2/org/apache/maven/plugins/maven-resources-plugin/2.4.3/maven-resources-
    plugin-2.4.3.pom    my-app      Unknown Maven Problem

POM.xml:

 <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.test.myapp</groupId>
  <artifactId>my-app</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>jar</packaging>
  <name>my-app</name>
  <url>http://maven.apache.org</url>
  <properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  </properties>
</project>

Answer 1

solved, issue was since working in an organization( where proxy enabled), enabled proxy in settings.xml as given by
maven in 5 min not working