出这个错该怎么解决啊?
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 19.868 s
[INFO] Finished at: 2017-10-19T22:43:39+08:00
[INFO] Final Memory: 8M/19M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-archetype-plugin:3.0.1:generate failed: Plugin org.apache.maven.plugins:maven-archetype-plugin:3.0.1 or one of its dependencies could not be resolved: Failed to collect dependencies at org.apache.maven.plugins:maven-archetype-plugin:jar:3.0.1 -> org.apache.maven.archetype:archetype-descriptor:jar:3.0.1: Failed to read artifact descriptor for org.apache.maven.archetype:archetype-descriptor:jar:3.0.1: Could not transfer artifact org.apache.maven.archetype:archetype-descriptor:pom:3.0.1 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org: Unknown host repo.maven.apache.org -> [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/PluginResolutionException