SignupForm.elm Initial Compiliation Errors

[signup] elm-make SignupForm.elm
Some new packages are needed. Here is the upgrade plan.

  Install:
    elm-lang/core 4.0.1

Do you approve of this plan? (y/n) y
Downloading elm-lang/core
Packages configured successfully!
I cannot find module 'Html.App'.

Module 'SignupForm' is trying to import it.

Potential problems could be:
  * Misspelled the module name
  * Need to add a source directory or new dependency to elm-package.json
[signup] elm-package install elm-lang/html
To install elm-lang/html I would like to add the following
dependency to elm-package.json:

    "elm-lang/html": "1.0.0 <= v < 2.0.0"

May I add that to elm-package.json for you? (y/n) y

Some new packages are needed. Here is the upgrade plan.

  Install:
    elm-lang/html 1.0.0
    elm-lang/virtual-dom 1.0.2

Do you approve of this plan? (y/n) y
Downloading elm-lang/html
Downloading elm-lang/virtual-dom
Packages configured successfully!
[signup] elm-make SignupForm.elm
-- NAMING ERROR ------------------------------------------------- SignupForm.elm

Cannot find variable `initialModel`

71|         { init = ( initialModel, Cmd.none )
                       ^^^^^^^^^^^^


-- NAMING ERROR ------------------------------------------------- SignupForm.elm

Cannot find variable `update`

73|         , update = update
                       ^^^^^^
Maybe you want one of the following?

    Html.Attributes.pubdate

Detected errors in 1 module.

Add:

initialModel =
    { username = "", password = "", errors = initialErrors }

update msg model =
    ( model, Cmd.none )