GUI Build Fails in Fedora Linux

Failure during build on Fedora Linux:

[INFO] Verifying URN:
[WARNING] Rule 1: failed with message:
At least one artifact has not met expectations. You should manually verify the integrity of the affected artifacts against trusted sources.
[INFO] ------------------------------------------------------------------------
[INFO] Reactor Summary:
[INFO] parent … SUCCESS [ 0.195 s]
[INFO] common … SUCCESS [01:10 min]
[INFO] jsocks … SUCCESS [ 1.869 s]
[INFO] jtorctl … SUCCESS [ 1.023 s]
[INFO] jtorproxy … SUCCESS [ 3.547 s]
[INFO] network … SUCCESS [ 6.984 s]
[INFO] core … SUCCESS [ 17.236 s]
[INFO] gui … FAILURE [01:01 min]
[INFO] seednode … SKIPPED
[INFO] statistics … SKIPPED
[INFO] provider … SKIPPED
[INFO] ------------------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 02:43 min
[INFO] Finished at: 2017-08-10T08:08:15+01:00
[INFO] Final Memory: 53M/678M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:1.4.1:enforce (enforce) on project gui: Some Enforcer rules have failed. Look above for specific messages explaining why the rule failed. -> [Help 1]
[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] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1]
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR] mvn -rf :gui
[root@linux bitsquare-0.5.3]#