# \[Rails\] Errore strano

**URL:** <https://www.ruby-forum.com/t/rails-errore-strano/236814>\
**Category:** IT\
**Created:** [October 5, 2013, 11:25am UTC](https://www.ruby-forum.com/t/rails-errore-strano/236814 "2013-10-05T11:25:13Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![alcina](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/a587f6/32.png) [@alcina](https://www.ruby-forum.com/u/alcina)\
**Post date:** [October 5, 2013, 11:25am UTC](https://www.ruby-forum.com/t/rails-errore-strano/236814/1 "2013-10-05T11:25:13Z")

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Ciao, so che l’oggetto della mail non molto esplicativo ma cerco di  
spiegare  
meglio il mio problema:

Sto portando un’app da Rails 3 (Ruby 1.9.3) a Rails 4 (Ruby 2).  
Tutto funziona correttamente tranne una cosa.  
Nel progetto ho incluso una gemma fatta da me. Questa gemma a sua volta  
include  
funzionalit nell’ApplicationController tramite questo codice in  
engine.rb

```
initializer 'bay_app.action_controller' do |app|
  ActiveSupport.on_load(:action_controller) do
    include BayAppActionControllerExtension
  end
end

```

Quando modifico controller e model dell’app in modalit devel (quindi con  
cache\_classes = false) aggiornando la pagina nel browser ottengo questo  
errore:  
‘A copy of BayAppActionControllerExtension has been removed from the  
module  
tree but is still active!’

Qualcuno si gi scontrato con questo problema?  
Grazie

–  
Massimo M. aka maintux

---

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**Author:** ![khruner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/2bfe46/32.png) [@khruner](https://www.ruby-forum.com/u/khruner)\
**Post date:** [October 5, 2013, 11:28am UTC](https://www.ruby-forum.com/t/rails-errore-strano/236814/2 "2013-10-05T11:28:44Z")

</div>

Ciao Massimo,

e se provi con?

initializer ‘bay\_app.action\_controller’ do |app|

> ActiveSupport.on\_load(:action\_controller) do  
> include ::BayAppActionControllerExtension  
> end  
> end

```
Ju

```

## –\* \*M.Sc. Ju Liu Twitter: @arkh4m [http://twitter.com/arkh4m](http://twitter.com/arkh4m) Card: [http://zerp.ly/ju-liu](http://zerp.ly/ju-liu)

Societ Cooperativa weLaika  
Corso Vigevano 14/B, 10154 Torino (TO), Italy  
[http://welaika.com](http://welaika.com) - removed\_email\_address@domain.invalid

2013/10/5 Massimo M. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

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<div class="post-metadata">

**Author:** ![khruner](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/2bfe46/32.png) [@khruner](https://www.ruby-forum.com/u/khruner)\
**Post date:** [October 5, 2013, 11:44am UTC](https://www.ruby-forum.com/t/rails-errore-strano/236814/3 "2013-10-05T11:44:30Z")

</div>

In data sabato 5 ottobre 2013 11:28:01, Ju Liu ha scritto:

> > end  
> > Grazie ma purtroppo non va… E’ stata la prima cosa che ho provato dopo  
> > aver  
> > cercato info in merito…