cmcmillen1 [http://community.jboss.org/people/cmcmillen1] created the discussion "Re: jbpm-5.1.0 Demo can't work fine" To view the discussion, visit: http://community.jboss.org/message/632883#632883 -------------------------------------------------------------- I had the same issue and solved it by upgrading to JDK 1.6+. The user guide says JDK 1.5+ is all that is required and I happened to have 1.5.0_16 installed so I just went with that.  After having the described issues (and noticing that in the demo video they are using JDK 1.6.0_14) I switched to JDK 1.6.0_16 since I had that installed already and now everything is working fine. Also, I'm not sure if this was necessary or not but just to be safe, after switching JDKs I deleted the jbpm-installer/ folder, re-extracted the installer archive, and re-ran "ant install.demo". Hope this helps. -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/632883#632883] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]