First try at running elm make fails.

[yb66]

Hi,

I installed Elm on OSX 10.9.5 Mavericks yesterday using Elm Platform package installer 0.17. I thought I'd try out the Buttons tutorial on my machine, but I got an error message:

$ elm make button.elm
Some new packages are needed. Here is the upgrade plan.

  Install:
    elm-lang/core 4.0.0

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

Module 'Main' 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

I found this StackOverflow answer that suggests running elm package install evancz/elm-html. That leads to:

Error: Unable to find a set of packages that will work with your constraints

The elm-package.json that was generated looks like this:

{
    "version": "1.0.0",
    "summary": "helpful summary of your project, less than 80 characters",
    "repository": "https://github.com/user/project.git",
    "license": "BSD3",
    "source-directories": [
        "."
    ],
    "exposed-modules": [],
    "dependencies": {
        "elm-lang/core": "4.0.0 <= v < 5.0.0",
        "evancz/elm-html": "4.0.2 <= v < 5.0.0"
    },
    "elm-version": "0.17.0 <= v < 0.18.0"
}

Any help, much appreciated. If this isn't the right place to open this issue please point me in the right direction.

Regards,
iain

[jvoigtlaender]

As of Elm 0.17, you need elm package install elm-lang/html instead of elm package install evancz/elm-html.

[jvoigtlaender]

As of Elm 0.17, you need elm package install elm-lang/html instead of elm package install evancz/elm-html.

[yb66]

Thanks, but I still get an error:

$ 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


Error: Unable to find a set of packages that will work with your constraints.

Is there something else I need to do?

[yb66]

Thanks, but I still get an error:

$ 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


Error: Unable to find a set of packages that will work with your constraints.

Is there something else I need to do?

[jvoigtlaender]

Well, you should delete the now obsolete evancz/elm-html line from your elm-package.json, of course.

[jvoigtlaender]

Well, you should delete the now obsolete evancz/elm-html line from your elm-package.json, of course.