"Programming Phoenix" book: Which version of Ph. Framework to install?

hbs · July 16, 2016, 9:18am

I’m about to tackle Phoenix with the book “Programming Phoenix”.

The book instructs to install Phoenix from https://github.com/phoenixframework/archives/raw/
/master/phoenix_new.ez

As far as I can tell this version of Phoenix comes with Ecto 2.0 which breaks a number of examples from the book.

Which is the last 1.1.x version of the Phoenix framework that will work with the book - would that be “phoenix_new-1.1.6.ez”?
(Currently installed versions of Erlang and Elixir are: 19.0.2 / 1.3.2.)

One additional question: How do I get rid of the installed Phoenix 1.2.0? Just delete the directory from the .mix/archives/ or does it have to be removed via mix. If so, how?

Thanks in advance!

josevalim · July 16, 2016, 3:08pm

Stick with phoenix_new 1.1.6 for the book. The changes are few but it will help avoid confusion in case you get stuck somewhere. Migrating to 1.2.0 should be straight-forward later on.

About the archives, you can either use mix archive.uninstall or just remove the directory manually. Both are fine.

Have fun!

hbs · July 16, 2016, 3:55pm

That was my thinking. Problems will most inevitably come.

Thanks!

mcpike · November 28, 2016, 5:39pm

I’ve done this, versions I’m running:
Erlang/OTP 19
Elixir 1.3.4
phoenix_new-1.1.6

…but have problems with ecto when compiling the throwaway project:

== Compilation error on file lib/phoenix_ecto/html.ex ==
** (KeyError) key :model not found in: %Phoenix.HTML.Form{data: nil, errors: {{:., [line: 12], [{:changeset, [line: 12], nil}, :errors]}, [line: 12], }, hidden: , id: {:name, [line: 10], nil}, impl: Phoenix.HTML.FormData.Ecto.Changeset, index: nil, name: {:name, [line: 11], nil}, options: , params: %{}, source: {:changeset, [line: 8], nil}}
(stdlib) :maps.update(:model, {:model, [line: 13], nil}, %Phoenix.HTML.Form{data: nil, errors: {{:., [line: 12], [{:changeset, [line: 12], nil}, :errors]}, [line: 12], }, hidden: , id: {:name, [line: 10], nil}, impl: Phoenix.HTML.FormData.Ecto.Changeset, index: nil, name: {:name, [line: 11], nil}, options: , params: %{}, source: {:changeset, [line: 8], nil}})
lib/phoenix_html/form.ex:170: anonymous fn/2 in Phoenix.HTML.Form.struct/1

I found this related issue on github:

github.com/phoenixframework/phoenix

Could not compile dependency :phoenix_ecto, "mix compile" failed

opened 12:04PM - 30 Sep 16 UTC

closed 12:44PM - 30 Sep 16 UTC

ijunaid8989

### Precheck - For help and support, use Stack Overflow or the Phoenix Talk mail…ing list - For proposing a new feature, start a discussion on the Phoenix Core mailing list - For bugs, do a quick search and make sure the bug has not yet been reported - Ensure that this issue is related to the Phoenix library and not one of the dependencies listed in mix.exs (Ecto, Plug, etc.) - All checked? Be nice and have fun! ### Environment - Elixir version (elixir -v): 1.3.2 - Phoenix version (mix deps): 1.1.6 - NodeJS version (node -v): v6.0.0 - NPM version (npm -v): 3.8.6 - Operating system: Ubuntu ### Expected behavior `mix ecto.create` should work fine and create DB ### Actual behavior ``` == Compilation error on file lib/phoenix_ecto/html.ex == ** (KeyError) key :model not found in: %Phoenix.HTML.Form{data: nil, errors: {{:., [line: 12], [{:changeset, [line: 12], nil}, :errors]}, [line: 12], []}, hidden: [], id: {:name, [line: 10], nil}, impl: Phoenix.HTML.FormData.Ecto.Changeset, index: nil, name: {:name, [line: 11], nil}, options: [], params: %{}, source: {:changeset, [line: 8], nil}} (stdlib) :maps.update(:model, {:model, [line: 13], nil}, %Phoenix.HTML.Form{data: nil, errors: {{:., [line: 12], [{:changeset, [line: 12], nil}, :errors]}, [line: 12], []}, hidden: [], id: {:name, [line: 10], nil}, impl: Phoenix.HTML.FormData.Ecto.Changeset, index: nil, name: {:name, [line: 11], nil}, options: [], params: %{}, source: {:changeset, [line: 8], nil}}) lib/phoenix_html/form.ex:170: anonymous fn/2 in Phoenix.HTML.Form.__struct__/1 (elixir) lib/enum.ex:1623: Enum."-reduce/3-lists^foldl/2-0-"/3 expanding struct: Phoenix.HTML.Form.__struct__/1 lib/phoenix_ecto/html.ex:7: Phoenix.HTML.FormData.Ecto.Changeset.to_form/2 could not compile dependency :phoenix_ecto, "mix compile" failed. You can recompile this dependency with "mix deps.compile phoenix_ecto", update it with "mix deps.update phoenix_ecto" or clean it with "mix deps.clean phoenix_ecto" ```

The proposed solution is to upgrade to Phoenix 1.2, which seems to defeat the issue of working with 1.16 in order to be compatible with the book. It is also suggested that the issues has been fixed with 1.16, but, alas, I’m seeing the problem still.

Any suggestions?

josevalim · November 28, 2016, 7:58pm

Can you please check if adding {:phoenix_ecto, "~> 2.6.0"} to your mix.exs under the deps section fixes the issue?

josevalim · November 28, 2016, 8:10pm

Sorry, the instruction above is wrong. You should fix both of those dependencies in your mix.exs:

{:phoenix_ecto, "~> 2.0.1"},
{:phoenix_html, "~> 2.6.0"},

mcpike · November 28, 2016, 10:12pm

Thanks! Sorry, my bad.

I had actually tried that before, but apparently forgot to rerun ‘mix deps.get’ after updating the mix.exs