wilson wang [https://community.jboss.org/people/wwfifi] created the document: "can upgrade JBoss Tools 3.4 beta dependency slf4j version?" To view the document, visit: https://community.jboss.org/docs/DOC-17794 -------------------------------------------------------------- slf4j 1.5.8 is too old, and some other eclipse plugin use higher version. it cause conflict when install them same time. can upgrade to 1.6.0 or higher? 1.6.x is compatible -------------------------------------------------------------- Comment by going to Community [https://community.jboss.org/docs/DOC-17794] Create a new document in JBoss Tools Development at Community [https://community.jboss.org/choose-container!input.jspa?contentType=102&a...]