This is the message, both from quickload, and loading version taken from github debugger invoked on a ASDF/FIND-COMPONENT:MISSING-COMPONENT in thread #<THREAD "main thread" RUNNING {10005605B3}>: Component "clim" not found Type HELP for debugger help, or (SB-EXT:EXIT) to exit from SBCL. restarts (invokable by number or by possibly-abbreviated name): 0: [RETRY ] Retry ASDF operation. 1: [CLEAR-CONFIGURATION-AND-RETRY] Retry ASDF operation after resetting the configuration. 2: Retry ASDF operation. 3: Retry ASDF operation after resetting the configuration. 4: [ABORT ] Give up on "clim" 5: Give up on "mcclim" 6: Exit debugger, returning to top level. ((:METHOD ASDF/OPERATE:OPERATE (SYMBOL T)) ASDF/LISP-ACTION:LOAD-OP "clim" :VERBOSE NIL) [fast-method] error finding frame source: Bogus form-number: the source file has probably changed too much to cope with. source: NIL 0] What is wrong with it? Best regards, Zbyszek Jurkiewicz