according to link http://docs.opendaylight.org/en/stable-nitrogen/developer-guide/developing-apps-on-the-opendaylight-controller.html

mvn archetype:generate -DarchetypeGroupId=org.opendaylight.controller -DarchetypeArtifactId=opendaylight-startup-archetype \ -DarchetypeRepository=https://nexus.opendaylight.org/content/repositories/public/ \ -DarchetypeCatalog=https://nexus.opendaylight.org/content/repositories/public/archetype-catalog.xml

when using mvn to create a new project, always failed as below

] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] >>> maven-archetype-plugin:3.0.1:generate (default-cli) > generate-sources @ standalone-pom >>>
[INFO]
[INFO] <<< maven-archetype-plugin:3.0.1:generate (default-cli) < generate-sources @ standalone-pom <<<
[INFO]
[INFO] — maven-archetype-plugin:3.0.1:generate (default-cli) @ standalone-pom —
[INFO] Generating project in Interactive mode
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 14.972 s
[INFO] Finished at: 2017-12-10T17:22:38+08:00
[INFO] Final Memory: 16M/176M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate (default-cli) on project standalone-pom: archetypeCatalog 'https://nexus.opendaylight.org/content/repositories/public/archetype-catalog.xml' is not supported anymore. Please read the plugin documentation for details. -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException