No function clause matching in Plsm.IO.Export.map_type for :none

[trans]

Tried to run Plsm on the Fishbowl inventory system MySQL database.

➜ mix plsm                                 
Using MySql...
** (FunctionClauseError) no function clause matching in Plsm.IO.Export.map_type/1    

    The following arguments were given to Plsm.IO.Export.map_type/1:

        # 1
        :none

    Attempted function clauses (showing 7 out of 7):

        defp map_type(:decimal)
        defp map_type(:float)
        defp map_type(:string)
        defp map_type(:text)
        defp map_type(:map)
        defp map_type(:date)
        defp map_type(:integer)

    lib/io/export.ex:12: Plsm.IO.Export.map_type/1
    lib/io/export.ex:8: Plsm.IO.Export.type_output/1
    lib/io/export.ex:63: anonymous fn/2 in Plsm.IO.Export.prepare/2
    (elixir 1.12.2) lib/enum.ex:2385: Enum."-reduce/3-lists^foldl/2-0-"/3
    lib/io/export.ex:62: Plsm.IO.Export.prepare/2
    (elixir 1.12.2) lib/enum.ex:1582: Enum."-map/2-lists^map/1-0-"/2
    (elixir 1.12.2) lib/enum.ex:1582: Enum."-map/2-lists^map/1-0-"/2
    lib/plsm.ex:16: Mix.Tasks.Plsm.run/1

Any ideas?

Here's my version info.

➜ elixir -v
Erlang/OTP 24 [erts-12.0.3] [source] [64-bit] [smp:4:4] [ds:4:4:10] [async-threads:1] [jit]

Elixir 1.12.2 (compiled with Erlang/OTP 22)

➜ mix deps
* connection 1.1.0 (Hex package) (mix)
  locked at 1.1.0 (connection) 722c1eb0
  ok
* db_connection 2.4.1 (Hex package) (mix)
  locked at 2.4.1 (db_connection) ea36d226
  ok
* decimal 2.0.0 (Hex package) (mix)
  locked at 2.0.0 (decimal) 34666e9c
  ok
* myxql 0.4.5 (Hex package) (mix)
  locked at 0.4.5 (myxql) 40a6166a
  ok
* plsm 2.4.0 (Hex package) (mix)
  locked at 2.4.0 (plsm) 071b79fb
  ok
* postgrex 0.15.13 (Hex package) (mix)
  locked at 0.15.13 (postgrex) 3ffb76e1
  ok
* telemetry 1.0.0 (Hex package) (rebar3)
  locked at 1.0.0 (telemetry) 73bc09fa
  ok