The value NP is not of type LIST [Condition of type TYPE-ERROR]

[whnhch]

Hello! I need some help with running parseval.lisp.

environment is Ubuntu 18.04 LTS, and sbcl 2.2.8.

When I ran the function with the given input, there was a type error. The following is the result of debugging.

The value
  NP
is not of type
  LIST
   [Condition of type TYPE-ERROR]
Restarts:
 0: [RETRY] Retry SLIME REPL evaluation request.
 1: [*ABORT] Return to SLIME's top level.
 2: [ABORT] abort thread (#<THREAD "new-repl-thread" RUNNING {1004374873}>)
Backtrace:
  0: ((LAMBDA (\&OPTIONAL RUTILS.READTABLE:\% RUTILS.READTABLE:\%\%) :IN PARSEVAL:PARSEVAL) NP #<unused argument>)
      Locals:
        RUTILS.READTABLE:% = NP
  1: ((LABELS #:G23 :IN PARSEVAL:PARSEVAL) (NP (0 1 2 3)))
      Locals:
        RUTILS.ABBR:SUB = (NP (0 1 2 3))
  2: ((LABELS #:G23 :IN PARSEVAL:PARSEVAL) ((NP (0 1 2 3)) ((NNS #)) ((CC #)) ((NN #))))
      Locals:
        RUTILS.ABBR:SUB = ((NP (0 1 2 3)) ((NNS (0 1))) ((CC (1 2))) ((NN (2 3))))
  3: (PARSEVAL:PARSEVAL (NP (NNS "foo") (CC "and") (NN "bar")) (NP (NP (NN "foo")) (CC "and") (NN "bar")) :UNLABELLED NIL :SPLIT NIL :LEAFLESS NIL :WEIGHT NIL)
  4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (PARSEVAL:PARSEVAL (QUOTE (NP # # #)) (QUOTE (NP # # #))) #<NULL-LEXENV>)
  5: (EVAL (PARSEVAL:PARSEVAL (QUOTE (NP # # #)) (QUOTE (NP # # #))))
  6: (SWANK::EVAL-REGION "(parseval:parseval '(NP (NNS \"foo\") (CC \"and\") (NN \"bar\")) ..)
  7: ((LAMBDA NIL :IN SWANK-REPL::REPL-EVAL))
  8: (SWANK-REPL::TRACK-PACKAGE #<CLOSURE (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1004864CAB}>)
  9: (SWANK::CALL-WITH-RETRY-RESTART "Retry SLIME REPL evaluation request." #<CLOSURE (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1004864C4B}>)
 10: (SWANK::CALL-WITH-BUFFER-SYNTAX NIL #<CLOSURE (LAMBDA NIL :IN SWANK-REPL::REPL-EVAL) {1004864C2B}>)
 11: (SWANK-REPL::REPL-EVAL "(parseval:parseval '(NP (NNS \"foo\") (CC \"and\") (NN \"bar\")) ..)
 12: (SB-INT:SIMPLE-EVAL-IN-LEXENV (SWANK-REPL:LISTENER-EVAL "(parseval:parseval '(NP (NNS \"foo\") (CC \"and\") (NN \"bar\")) ..)
 13: (EVAL (SWANK-REPL:LISTENER-EVAL "(parseval:parseval '(NP (NNS \"foo\") (CC \"and\") (NN \"bar\")) ..)
 14: (SWANK:EVAL-FOR-EMACS (SWANK-REPL:LISTENER-EVAL "(parseval:parseval '(NP (NNS \"foo\") (CC \"and\") (NN \"bar\")) ..)
 15: (SWANK::PROCESS-REQUESTS NIL)
 16: ((LAMBDA NIL :IN SWANK::HANDLE-REQUESTS))
 17: ((LAMBDA NIL :IN SWANK::HANDLE-REQUESTS))
 18: (SWANK/SBCL::CALL-WITH-BREAK-HOOK #<FUNCTION SWANK:SWANK-DEBUGGER-HOOK> #<CLOSURE (LAMBDA NIL :IN SWANK::HANDLE-REQUESTS) {100421FAFB}>)
 19: ((FLET SWANK/BACKEND:CALL-WITH-DEBUGGER-HOOK :IN "/home/whanhee/.quicklisp/dists/quicklisp/software/slime-v2.27/swank/sbcl.lisp") #<FUNCTION SWANK:SWANK-DEBUGGER-HOOK> #<CLOSURE (LAMBDA NIL :IN SWANK:..
 20: (SWANK::CALL-WITH-BINDINGS ((*STANDARD-INPUT* . #<SWANK/GRAY::SLIME-INPUT-STREAM {1002242783}>)) #<CLOSURE (LAMBDA NIL :IN SWANK::HANDLE-REQUESTS) {100421FB1B}>)
 21: (SWANK::HANDLE-REQUESTS #<SWANK::MULTITHREADED-CONNECTION {1004A4F883}> NIL)
 22: ((FLET SB-UNIX::BODY :IN SB-THREAD::INITIAL-THREAD-FUNCTION-TRAMPOLINE))
 23: ((FLET "WITHOUT-INTERRUPTS-BODY-4" :IN SB-THREAD::INITIAL-THREAD-FUNCTION-TRAMPOLINE))
 24: ((FLET SB-THREAD::WITH-MUTEX-THUNK :IN SB-THREAD::INITIAL-THREAD-FUNCTION-TRAMPOLINE))
 25: ((FLET "WITHOUT-INTERRUPTS-BODY-1" :IN SB-THREAD::CALL-WITH-MUTEX))
 26: (SB-THREAD::CALL-WITH-MUTEX #<CLOSURE (FLET SB-THREAD::WITH-MUTEX-THUNK :IN SB-THREAD::INITIAL-THREAD-FUNCTION-TRAMPOLINE) {7F969AACECDB}> #<SB-THREAD:MUTEX "thread result lock" owner: #<SB-THREAD:THR..
 27: (SB-THREAD::INITIAL-THREAD-FUNCTION-TRAMPOLINE #<SB-THREAD:THREAD "new-repl-thread" RUNNING {1004374873}> NIL #<CLOSURE (LAMBDA NIL :IN SWANK-REPL::SPAWN-REPL-THREAD) {100437481B}> NIL)
 28: ("foreign function: call_into_lisp")
 29: ("foreign function: new_thread_trampoline")

There was no error when calling (ql:quickload :gr-parseval)

I would be very grateful if you give me any advice.