Lisp Syntax Example Fails

[jeffshrager]

Upon:

initrepl(LispSyntax.lisp_eval_helper,
valid_input_checker=valid_sexpr,
prompt_text="λ> ",
prompt_color=:red,
start_key=")",
mode_name="Lisp Mode")

I get:

ERROR: MethodError: no method matching setup_interface(::REPL.BasicREPL)
Closest candidates are:
setup_interface(!Matched::REPL.LineEditREPL; hascolor, extra_repl_keymap) at /Applications/Julia-1.8.app/Contents/Resources/julia/share/julia/st
dlib/v1.8/REPL/src/REPL.jl:908
setup_interface(!Matched::REPL.LineEditREPL, !Matched::Bool, !Matched::Any) at /Applications/Julia-1.8.app/Contents/Resources/julia/share/julia/
stdlib/v1.8/REPL/src/REPL.jl:911
Stacktrace:
[1] initrepl(parser::typeof(LispSyntax.lisp_eval_helper); prompt_text::String, prompt_color::Symbol, start_key::String, repl::REPL.BasicREPL, mod
e_name::String, show_function::Nothing, show_function_io::Base.TTY, valid_input_checker::Function, keymap::Dict{Char, Any}, completion_provider::R
EPL.REPLCompletionProvider, sticky_mode::Bool, startup_text::Bool)
@ ReplMaker ~/.julia/packages/ReplMaker/ViCwA/src/ReplMaker.jl:64
[2] top-level scope
@ none:1