undefined local variable or method `current_user' for

[xcopter]

installed latest gem (4.2). under ruby 2.0.0, rails 4 error occur when first "rails s"

[Jeswang]

same problem.

[Unayung]

have you guys run " rake db:migrate " after generating?

[Jeswang]

Problem solved after several steps. But I forget the details. Kind of things like what you say. @Unayung

[sdlong]

it's problem of database,

come to config/database.yml

back to default set:

development: adapter: sqlite3 database: db/development.sqlite3 pool: 5 timeout: 5000

test: adapter: sqlite3 database: db/test.sqlite3 pool: 5 timeout: 5000

production: adapter: sqlite3 database: db/production.sqlite3 pool: 5 timeout: 5000

---

and go to gemfile add : gem "sqlite3"

---

$ rake db:migrate

[beer]

I found the error is because devise, you can run the following command: rails g devise:install rails g devise user rake db:migrate

[yuyueugene84]

I followed instructions from rails-101, generated the group model in exercise 1 and encountered the same problem, I tried " rake db:migrate " after generating, and the same problem still exists.

[sdlong]

you need install devise, try

$ rails g devise:install

$ rails g devise user

[yuyueugene84]

Finally solved the problem, after running "rails g devise:install", make sure the following steps are completed: