If you are using Jeweler and get this error: no configured for Check out the troubleshooting section: You need to edit ~/.rubyforge/auto-config.yml and make sure processor_ids is set like this: processor_ids: IA64: 6000 AMD-64: 1500 Any: 8000 Sparc: 4000 PPC: 2000 Other: 9999 Alpha: 7000 i386: 1000 UltraSparc: 5000 MIPS: 3000