[java] Create a Maven project in Eclipse complains "Could not resolve archetype"

I am totally a newbie with Maven. I want to create a Maven project with Eclipse Juno EE with archetype "webapp". I installed "Maven Integration for Eclipse WTP (incubation)" and I also have installed "Maven Integration for Eclipse" (found it on Installed tab of Eclipse Marketplace). When I try to create new Project from File->New_>Maven Project, I obtain error:

Could not resolve archetype org.apache.maven.archetypes:maven-archetype-webapp:RELEASE from any of the configured repositories.
Could not resolve artifact org.apache.maven.archetypes:maven-archetype-webapp:pom:RELEASE
Failed to resolve version for org.apache.maven.archetypes:maven-archetype-webapp:pom:RELEASE: Could not find metadata org.apache.maven.archetypes:maven-archetype-webapp/maven-metadata.xml in local (C:\Documents and Settings\PEP35KD\.m2\repository)
Failed to resolve version for org.apache.maven.archetypes:maven-archetype-webapp:pom:RELEASE: Could not find metadata org.apache.maven.archetypes:maven-archetype-webapp/maven-metadata.xml in local (C:\Documents and Settings\PEP35KD\.m2\repository)

It happens for all kinds of archetype. I am using a proxy, and I create file settings.xml under C:\Documents and Settings\PEP35KD.m2\ with this content:

<proxies>
    <proxy>
        <id>myId</id>
        <active>true</active>
        <protocol>http</protocol>
        <username>rete\pep35kd</username>
        <password>XXXX</password>
        <host>XXXX</host>
        <port>8080</port>
        <nonProxyHosts>localhost</nonProxyHosts>
    </proxy>
</proxies>

Please, consider that it seems that I cannot use mvn command from command line (command not found). I never installed Maven itself, I thinked that plugin is just enough: is it a correct assumption?

UPDATE Problem is definitely related to proxy. By:

• Installing Maven on local PC;
• Installing Maven Eclipse from Eclipse Market Place;
• Setting Maven Install directory to local PC Maven dir, instead of default Embedded Maven,

everything works as expected. I cannot really understand why, but probably firewall is blocking traffic with Maven servers.

click windows-> preferences->Maven. uncheck "Offline" check box. This was not able to download archetype which I was using. When I uncheck it, Everything worked smooth.

You will need to install the m2eclipse or any other maven plugin in your eclipse. Some eclipse come with maven and its plugins installed. Otherwise go to Help->software Install, select All sites, filter list with maven, and then install the plugin. Then look at this link. Hope it helps.

Add your MAVEN_HOME environment variable, edit your Path to include %MAVEN_HOME%/bin then try creating the project manually with Maven:

mvn archetype:generate -DgroupId=com.program -DartifactId=Program -DarchetypeArtifactId=maven-archetype-webapp -DinteractiveMode=false

Then import the existing Maven project to Eclipse.

I was getting similar error while creating web-app in eclipse and resolved the problem just by cleaning (deleting all files from) and rebuilding the maven repository

You can resolve it by configuring settings.xml in Eclipse.

Go to Window --> Preferences --> Maven --> User Settings --> select the actual path of settings.xml

I find it solution http://www.scriptscoop.net/t/7c42f9d698a4/java-create-maven-project-could-not-resolve-archetype-connection-refused.html

We can see the origin of the problem : Connection refused: connect

I have already do this :

1) Window -> Preferences -> General -> Network Connections. I put in Manual with the url and port of my proxy for HTTP protocol. It works because before this, Spring Tool Suite did not want to update. After, it's okay.

2) Window -> Preferences -> Maven -> User Settings. In Global Settings, is empty. In User Settings, I put the path to settings.xml. In this file, i have :

i found the easiest way was to just remove/delete the .m2 folder and recreate it, putting back your settings.xml configuration details(if applicable).

This might sound silly, but make sure the "Offline" checkbox in Maven settings is unchecked. I was trying to create a project and got this error until I noticed the checkbox.

It is also possible that your settings.xml file defined in maven/conf folder defines a location that it cannot access

First things first, you have to install Maven on your workstation. You need also to install M2E, what you obviously did. Not all distributions of Juno have it pre-installed.

Then configure your Eclipse so it can find your Maven install. In the menu Window -> Preferences, then open the Maven section. In your right panel, you have a list of the Maven installations Eclipse knows. Add your installation and select it instead of the embedded Maven provided with M2E. Don't forget to set the "Global settings from installation directory" field with the path to the settings.xml of your Maven installation.

Which leads us to the settings.xml. If the above doesn't solve your problem, you will have to configure your Maven. More infos here.

Goto Preferences: -> Maven Click 'Add Remote Catalog' File: http://repo1.maven.org/maven2/archetype-catalog.xml Desc: Catalog

Adding the following inside "mirrors" section in the user setting.xml file worked for me.

<mirror>
  <id>ibiblio.org</id>
  <url>http://mirrors.ibiblio.org/maven2</url>
  <mirrorOf>central</mirrorOf>
</mirror>

Assuming that you have your proxy settings correct, you may have missed out pointing Eclipse to the intended settings.xml file. This happens often when you have both Maven installed as a snap in, and an external installation outside Eclipse. You need to tell Eclipse which Maven installation it should use, and which settings.xml file it should be looking for.

First check that the settings.xml file contains your proxy settings.

Next, check that the user settings.xml file here contains your proxy settings.

If you have made any changes, restart Eclipse.

Goto Preferences: -> Maven

1. check Download Artifact Source
2. check Download Artifact JavaDoc