Example code not working in Rails 4

[expilo]

I was trying both Formtastic version and Rails forms version and I am getting the following error

undefined method `check_box_checked?' for ActionView::Helpers::InstanceTag:Class

[nathanvda]

See formtastic/formtastic#915

Are you using the correct version of formtastic?

[expilo]

I used the most recent gem. Maybe I should use the github version? Anyway,
Simple Form version works fine for me. One more thing. It took me a moment
to realize that views templates are in slim. Maybe you might say it's slim
and add necessary line for Gemfile since slim isn't default in Rails 4.

Best

Piotr

2013/9/6 Nathan Van der Auwera notifications@github.com

See formtastic/formtastic#915formtastic/formtastic#915

Are you using the correct version of formtastic?

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Reply to this email directly or view it on GitHubhttps://github.com//issues/161#issuecomment-23968379
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[nathanvda]

I use simple form myself most of the times. But the issue i pointed you to is exactly the same error, and it was merged. Just saying: imho it is a formtastic problem.

I use haml in the examples (in the documentation), not slim. Secondly i point to complete projects where you can see it in action ( in one of them i do use slim). I was assuming that both erb and haml are familiar enough, and imho haml-style is very readable.