hi am eclipse luna am having this error when am doing maven update
Could not get the value for parameter encoding for plugin execution default-resources
Plugin org.apache.maven.plugins:maven-resources-plugin:2.6 or one of its dependencies could not be resolved: Failure to transfer commons-cli:commons-cli:jar:1.0 from http://repo1.maven.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact commons-cli:commons-cli:jar:1.0 from/to central (http://repo1.maven.org/maven2/): Failed to transfer file: http://repo1.maven.org/maven2/commons-cli/commons-cli/1.0/commons-cli-1.0.jar. Return code is: 504 , ReasonPhrase:Gateway Time-out.