elm_0.16_migration.md

Elm 0.16 Migration of Simple App

Once 0.16 installed

Installing my app's packages didn't work

elm package install

I got the following message

Error: Error reading file elm-package.json:
    Problem with the `repository` field.

Upper case characters are not allowed in package names

I think it would be easier just to delete the elm-package.json file and add back all packages.

elm package install elm-lang/core
elm package install evancz/elm-html
elm package install evancz/elm-http
elm package install evancz/elm-markdown
elm package install evancz/start-app

I tried to build my program

elm make new_stories.elm

I got the following message

Success! Compiled 10 modules.
elm-make: elm-stuff/build-artifacts/0.16.0/evancz/virtual-dom/2.1.0/VirtualDom.elmo: openFile: does not exist (No such file or directory)

Maybe we should clean everything

rm -rf elm-stuff
elm make new_stories.elm

Here is the output

Good, we're a bit closer

You're curious and want to see what has changed in the elm-package.json file? Go here

We can see that the record assignment syntax has changed

I ran into something unexpected when parsing your code!

105│             { game | past <- game.now :: game.past
                               ^
I am looking for one of the following things:

    an equals sign '='
    whitespace

The message is quite explicit. I correct the source.

$ elm make new_stories.elm
Success! Compiled 1 modules.
Successfully generated index.html

Cool! Migration completed.

Hope this was helpful to you,

Thanks! VERY HELPFUL!!!!