Maven: failed to get plugin descriptor error

Question

I configured Maven 3.0.3 and tried to download the sample project using archetypes using this command:

mvn archetype:generate -DarchetypeGroupId=org.graniteds.archetypes -DarchetypeArtifactId=graniteds-tide-spring-jpa-hibernate -DgroupId=org.example -DartifactId=gdsspringflex -Dversion=1.0-SNAPSHOT 

(The team at this link: http://java.dzone.com/articles/enterprise-ria-spring-3-flex-4 )

And I got this error:

 Downloading: repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-clean-plugin:2.4.1: Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1 Downloading: repo1.maven.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.3.1/maven-install-plugin-2.3.1.pom [WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-install-plugin:2.3.1: Plugin org.apache.maven.plugins:maven-install-plugin:2.3.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-install-plugin:jar:2.3.1 . . . Downloading: repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml Downloading: repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml [WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xml from/to central (repo1.maven.org/maven2): Error transferring file: Connection refused: connect [WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml from/to central (repo1.maven.org/maven2): Error transferring file: Connection refused: connect Downloading: repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml Downloading: repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml [WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xml from/to central (repo1.maven.org/maven2): Error transferring file: Connection refused: connect [WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml from/to central (repo1.maven.org/maven2): Error transferring file: Connection refused: connect [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 16.479s [INFO] Finished at: Tue Oct 18 12:44:58 BST 2011 [INFO] Final Memory: 1M/15M [INFO] ------------------------------------------------------------------------ [ERROR] No plugin found for prefix 'archetype' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (C:\Users\krsl1254\.m2\repository), central (repo1.maven.org/maven2)] -> [Help 1] 

I tried to find similar posts similar to this, but could not get an answer. I tried changing the proxy settings in settings.xml, but it still does not work. Could you help me?

Answer 1

I had the same error. In my case, I am using Netbeans 7.1.2, I am posting this because maybe someone will be here just like me.

I tried to configure proxy settings from the GUI, but the documentation says that maven does not read them. So I checked the NetBeans FAQ here :

What you basically need to do is create (if it does not exist) the settings.xml parameter under

 user.home/.m2/settings.xml 

if you don’t have one, you can copy from

 netbeans.home/java/maven/conf/settings.xml 

then uncomment if you already have this, otherwise fill out this section:

 <proxies> <proxy> <active>true</active> <host>myproxy.host.net</host> <port>80</port> </proxy> </proxies> 

you need to check the proxy server configuration and replace it there

Answer 2

I had a similar problem with Eclipse and the same steps as Sanders. This is because the proxy restricts the call to the maven repository.

• Go to D:\Maven\apache-maven-3.0.4-bin\apache-maven-3.0.4\conf (i.e. the maven installation folder)
• Copy settings.xml and paste it into the .m2 folder located in the users folder of your Windows machine.
• Add proxy settings

Something like that:

  <proxies> <!-- proxy Specification for one proxy, to be used in connecting to the network. --> <proxy> <active>true</active> <protocol>http</protocol> <username>your username</username> <password>password</password> <host>proxy.host.net</host> <port>80</port> </proxy> </proxies> 

Answer 3

I need to put

  <proxy> <id>optional</id> <active>true</active> <protocol>http</protocol> host>Your proxy host</host> <port>proxy host ip</port> <nonProxyHosts>local.net|some.host.com</nonProxyHosts> </proxy> 

Before

  <proxy> <id>optional</id> <active>true</active> <protocol>https</protocol> <host>Your proxy host</host> <port>proxy host ip</port> <nonProxyHosts>local.net|some.host.com</nonProxyHosts> </proxy> 

Strange, but yes. !!!, <protocol>http</protocol> should go to <protocol>https</protocol> . This solved my problem. Hope this helps someone who encounters connection problems even after including proxy settings in conf/settings.xml .

Answer 4

In my case, it did not work even after the proxy servers were transferred.

The error was - forgot to delete the comment line.

 <!-- proxy | Specification for one proxy, to be used in connecting to the network. <proxy> <id>optional</id> <active>true</active> <protocol>http</protocol> <username>345325</username> <password>dfgasdfg</password> <host>proxy.abc.com</host> <port>8080</port> <nonProxyHosts>proxy.abc.com</nonProxyHosts> </proxy> |--> ----------REMOVE THIS LINE AND CLOSE It above <proxy> tag 

Answer 5

I would not advise you to do this, but on my personal computer I turned off the firewall so that maven can get the necessary plugins.

Answer 6

I had the same problem. I went to configure IE -> LAN Settings. Then I copied the address as the host and port as the port, and it worked. Below is a snapshot of the proxies tag in the Settings.xml file that I changed.

 <proxy> <id>optional</id> <active>true</active> <protocol>http</protocol> <!--username>proxyuser</username> <password>proxypass</password--> <host>webtitan</host> <port>8881</port> <!--nonProxyHosts>local.net|some.host.com</nonProxyHosts--> </proxy> 

Answer 7

I had to change the password to the last in user.home / .m2 / settings.xml!

Answer 8

Thanks for working ...

edit the .xml parameter

and replace the proxy with this

Works 100%

 <proxy> <active>true</active> <protocol>http</protocol> <username>your username</username> <password>password</password> <host>proxy.host.net</host> <port>80</port> 

Answer 9

This problem will be resolved when changing the version of apache-maven

I ran into this and it was resolved when I used apache-maven-2.2.1

Answer 10

I had the same problem because I used port 80 instead of 8080 in the proxy settings.xml

Answer 11

Mac OSX 10.7.5: I tried installing my proxy server in the settings.xml file (as mentioned above) in the / conf directory as well as in the ~ / .m2 directory, but still I got this error. I downloaded the latest version of Maven (3.1.1) and set the PATH variable to reflect the latest installation, and it worked for me right off the shelf without any errors.

Answer 12

I had the same problem on Windows

and it worked with the changed proxy configuration in the settings.xml file

So, find and edit the file inside the \conf folder, for example: C:\Program Files\apache-maven-3.2.5\conf

 <proxies> <!-- proxy | Specification for one proxy, to be used in connecting to the network. | <proxy> <id>optional</id> <active>true</active> <protocol>http</protocol> <username>jorgesys</username> <password>supercalifragilisticoespialidoso</password> <host>proxyjorgesys</host> <port>8080</port> <nonProxyHosts>local.net|some.host.com</nonProxyHosts> </proxy> --> </proxies> 

• In my case, I had to iterate from port 80 to 8080
• If you cannot edit this file located inside /program files , you can make a copy, edit the file and replace the file located in the /program files folder.

Answer 13

In my case, even my system is not behind the proxy server, I have the same problem. I was able to solve by typing mvn help: archetype before mvn archetype: generate

Answer 14

If you created a new settings.xml instead of copying it from another place, do not forget to put the tag inside:

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 https://maven.apache.org/xsd/settings-1.0.0.xsd"> <proxies> ..... </proxies> </settings>

Answer 15

Several times, if we delete the local repository folder and try mvn install again, this works. you can also try to delete the .m2 / maven home folder (i.e. the local repository of the hidden folder)