Hello Oscar,

Before trying to guess anything, I would like to know versions of ASDF, SBCL and Quicklisp. Could you show the output of following form:

(list (asdf:asdf-version)
      (lisp-implementation-version)
      (ql:dist-version "quicklisp")
      (ql:where-is-system :mcclim))
On 29/05/20 8:41 pm, Oscar Chappel wrote:
Hello,
I am just starting to work with Common Lisp user interface development tools. I’m running SBCL, SLIME, in EMACS on a Mac using High Sierra 10.13.6.   I’m trying to use quicklisp to load McClim.  When I execute (ql:quickload :mcclim) I get the following error:

Circular dependency:
   ((#<ASDF/FIND-SYSTEM:DEFINE-OP >
     . #<ASDF/SYSTEM:SYSTEM "esa-mcclim">))
   [Condition of type ASDF/ACTION:CIRCULAR-DEPENDENCY]

Here is the stack trace:

Backtrace:
  0: ((LAMBDA NIL :IN ASDF/ACTION:CALL-WHILE-VISITING-ACTION))
  1: (ASDF/PLAN:TRAVERSE-ACTION #<ASDF/PLAN:SEQUENTIAL-PLAN {10067B53D3}> #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim"> T)
  2: ((LAMBDA NIL :IN ASDF/PLAN:MAKE-PLAN))
  3: ((:METHOD ASDF/OPERATE:OPERATE (ASDF/OPERATION:OPERATION ASDF/COMPONENT:COMPONENT)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim"> :PLAN-CLASS NIL :PLAN-OPTIONS NIL) [fast-method]
  4: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">)
  5: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
  6: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">) [fast-method]
  7: ((LAMBDA NIL :IN ASDF/SYSTEM:FIND-SYSTEM))
  8: (ASDF/SESSION:CONSULT-ASDF-CACHE (ASDF/SYSTEM:FIND-SYSTEM "esa-mcclim") #<CLOSURE (LAMBDA NIL :IN ASDF/SYSTEM:FIND-SYSTEM) {10067B372B}>)
  9: ((:METHOD ASDF/ACTION:PERFORM :AROUND (T T)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">) [fast-method]
 10: ((LAMBDA NIL :IN ASDF/ACTION:CALL-WHILE-VISITING-ACTION))
 11: ((:METHOD ASDF/ACTION:PERFORM-WITH-RESTARTS :AROUND (T T)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">) [fast-method]
 12: ((:METHOD ASDF/PLAN:PERFORM-PLAN (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {10067B26B3}>) [fast-method]
 13: ((FLET SB-C::WITH-IT :IN SB-C::%WITH-COMPILATION-UNIT))
 14: ((:METHOD ASDF/PLAN:PERFORM-PLAN :AROUND (T)) #<ASDF/PLAN:SEQUENTIAL-PLAN {10067B26B3}>) [fast-method]
 15: ((:METHOD ASDF/OPERATE:OPERATE (ASDF/OPERATION:OPERATION ASDF/COMPONENT:COMPONENT)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim"> :PLAN-CLASS NIL :PLAN-OPTIONS NIL) [fast-method]
 16: ((SB-PCL::EMF ASDF/OPERATE:OPERATE) #<unused argument> #<unused argument> #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">)
 17: ((LAMBDA NIL :IN ASDF/OPERATE:OPERATE))
 18: ((:METHOD ASDF/OPERATE:OPERATE :AROUND (T T)) #<ASDF/FIND-SYSTEM:DEFINE-OP > #<ASDF/SYSTEM:SYSTEM "esa-mcclim">) [fast-method]
 19: ((LAMBDA NIL :IN ASDF/SYSTEM:FIND-SYSTEM))

Can anyone point me to a solution?
Thanks.
Sincerely,
Oscar Chappel