This only happens on Bukkit 1.0.0 I've tried this on both my CentOS Dedicated box, and my Windows PC. When I type java -version, I get: java version "1.6.0_20" OpenJDK Runtime Environment (IcedTea6 1.9.10) (rhel-188.8.131.52.10.el5_7-x86_64) OpenJDK 64-Bit Server VM (build 19.0-b09, mixed mode) I get the EXACT error: CentOS: > java -Xms1024M -Xmx1024M -jar craftbukkit.jar nogui Failed to load Main-Class manifest attribute from craftbukkit.jar Any ideas? $5 PayPal to whoever gives the right answer. I will PM you. Bump. I really need this fixed :S EDIT by Moderator: merged posts, please use the edit button instead of double posting.