$ mvn package
[INFO] Scanning for projects...
[INFO]
[INFO] --------------------< si.medius.nlp:medius-nlp-ui >---------------------
[INFO] Building medius-nlp-ui 1.0-SNAPSHOT
[INFO] --------------------------------[ war ]---------------------------------
[WARNING] The POM for si.medius:Medius-Vaadin-Common:jar:7.8.2 is missing, no dependency information available
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time:  3.188 s
[INFO] Finished at: 2019-03-24T17:21:09+01:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project medius-nlp-ui: Could not resolve dependencies for project si.medius.nlp:medius-nlp-ui:war:1.0-SNAPSHOT: Cannot access central (https://repo.maven.apache.org/maven2) in offline mode and the artifact si.medius:Medius-Vaadin-Common:jar:7.8.2 has not been downloaded from it before. -> [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/DependencyResolutionException