Can't migrate database after 'rails g devise_token_auth:install User auth'

[dgleba]

I am following the steps on the readme.md.

I do this.. rails g devise_token_auth:install User auth

Then:
The first line in the migration file says:

class DeviseTokenAuthCreateUsers < ActiveRecord::Migration[4.2]

If i remove the [4.2], it works.

Is there a way to avoid this?
I am using this in a script and it would be nice if it didn't do this.

The error if the [4.2] is left in is:

albe@v206x20161030220807:~/share203/dta2g$ rake db:migrate
-- [](4.2)
-- [](4.2)
rake aborted!
NoMethodError: undefined method `[]' for #<ActiveRecord::Migration:0x007fb5459dda30>
/home/albe/share203/dta2g/db/migrate/20161201020449_devise_token_auth_create_users.rb:1:in `<top (required)>'
NoMethodError: undefined method `[]' for #<ActiveRecord::Migration:0x007fb5459dda30>
/home/albe/share203/dta2g/db/migrate/20161201020449_devise_token_auth_create_users.rb:1:in `<top (required)>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)
albe@v206x20161030220807:~/share203/dta2g$ 

[kedarnag138]

@dgleba I had the same issue, and removed that to make it to work. Although, I actually thought I had typed [4.2] by mistake. I am not sure, why that gets added in the migration. Could somebody please explain.

[adamw005]

I also had this issue, and removing [4.2] worked for me as well

[Saulgor]

I got this issue too...

[fabianprado]

It got it too

[zachfeldman]

Workaround posted, closing for now

[maricavor]

Hi! I am still getting this after I am trying rails g ...:

  --[](4.2)
  /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activerecord-4.2.7.1/lib/active_record/migration.rb:664:in `block in method_missing': undefined method `[]' for #<ActiveRecord::Migration:0x007fce10a866b0> (NoMethodError)`
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activerecord-4.2.7.1/lib/active_record/migration.rb:634:in `block in say_with_time'
from /Users/Sergei/.rvm/rubies/ruby-2.2.5/lib/ruby/2.2.0/benchmark.rb:288:in `measure'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activerecord-4.2.7.1/lib/active_record/migration.rb:634:in `say_with_time'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activerecord-4.2.7.1/lib/active_record/migration.rb:654:in `method_missing'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activerecord-4.2.7.1/lib/active_record/migration.rb:416:in `method_missing'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/encrypted_store-0.3.0/lib/generators/encrypted_store/upgrade/ZeroOneFive/templates/upgrade_encryption_keys_to_015.rb:1:in `<top (required)>'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `block in require'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:240:in `load_dependency'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/activesupport-4.2.7.1/lib/active_support/dependencies.rb:274:in `require'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/encrypted_store-0.3.0/lib/encrypted_store/railtie.rb:18:in `block (2 levels) in <class:Railtie>'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/encrypted_store-0.3.0/lib/encrypted_store/railtie.rb:18:in `each'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/encrypted_store-0.3.0/lib/encrypted_store/railtie.rb:18:in `block in <class:Railtie>'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/railtie.rb:228:in `call'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/railtie.rb:228:in `block in run_generators_blocks'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/railtie.rb:245:in `each'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/railtie.rb:245:in `each_registered_block'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/railtie.rb:228:in `run_generators_blocks'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/application.rb:462:in `block in run_generators_blocks'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/engine/railties.rb:13:in `each'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/engine/railties.rb:13:in `each'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/application.rb:462:in `run_generators_blocks'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/engine.rb:461:in `load_generators'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/commands/commands_tasks.rb:129:in `generate_or_destroy'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/commands/commands_tasks.rb:50:in `generate'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /Users/Sergei/.rvm/gems/ruby-2.2.5@rails4/gems/railties-4.2.7.1/lib/rails/commands.rb:17:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'

Why --[](4.2) appears after command, and why rails generate command is not working at all after this. It happened after I did bundle update.

[zachfeldman]

@maricavor your stack trace is hard to read, can you be more specific?