(let ((myA (make-array 3
:initial-contents '(1 2 3))))
(map 'array #'(lambda (myX)
(+ myX 5))
myA))
ARRAY is a bad type specifier for sequences.
[Condition of type SIMPLE-TYPE-ERROR]

Restarts:
0: [RETRY] Retry SLIME REPL evaluation request.
1: [ABORT] Return to sldb level 6.
2: [RETRY] Retry SLIME REPL evaluation request.
3: [ABORT] Return to sldb level 5.
4: [CONTINUE] Continue from break.
5: [ABORT] Return to sldb level 4.
--more--

Backtrace:
0: (SB-KERNEL:%MAP ARRAY #<FUNCTION (LAMBDA #) {AF5978D}> #(1 2 3))