I can start JBossServer from command prompt. C:\jboss4\bin > run.bat ....server start. I can see http://localhost:8080/ But!! I can't start JBossServer from IDE "JBoss Server View". Right click on the server icon, and choose "start" menu. It begin to start and I can see logging in Console View. After log message say "Start in XXm XXms.", server status is "Starting" yet. After seconds, Error message appear. "JBoss Server failed to start." server status returns "Stopped". C:\jboss4\server\default\log\server.log [BOF] ... ... ... 2006-09-12 18:05:17,953 INFO [org.jboss.system.server.Server] JBoss (MX MicroKernel) [4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=200605151000)] Started in 22s:407ms 2006-09-12 18:05:19,687 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Loaded properties, users=[admin] 2006-09-12 18:05:19,687 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Loaded properties, users=[admin] 2006-09-12 18:05:19,703 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Bad password for username=null ... ... ... 2006-09-12 18:06:21,640 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Loaded properties, users=[admin] 2006-09-12 18:06:21,640 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Loaded properties, users=[admin] 2006-09-12 18:06:21,640 DEBUG [org.jboss.security.auth.spi.UsersRolesLoginModule] Bad password for username=null [EOF] following. my environment. Eclipse 3.2 JBoss 4.0.4 Java EE 5 Windows XP Sorry about poor English. Help me please. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3970951#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...