I have a problem when i try to make a new maven project this error message happen on pom.xml file this is the error message
Failure to transfer org.apache.maven.plugins:maven-assembly-plugin:pom:2.2 from http://mavensync.zkoss.org/maven2/ was cached in the local repository, resolution will not be reattempted until the update interval of zkmaven has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-assembly-plugin:pom:2.2 from/to zkmaven (http://mavensync.zkoss.org/maven2/): Not authorized , ReasonPhrase:Unauthorized.
Please help me how to solve this. Thank you