Build failure due to HTTP 404 (slf4j is not available in Nexus Repo)

[imbur]

Hi, I have cloned GreyCat and wanted to build it locally using mvn clean install. However, my build fails at this line, because the URL is no longer valid: https://travis-ci.org/datathings/greycat/jobs/391336862#L2536 (Line 2536, https://registry.datathings.com/repository/public/org/slf4j/slf4j-api/1.7.5/slf4j-api-1.7.5.pom is not there) Any help is appreciated! Cheers, Marton