Why am I asked to run 'rake db:migrate RAILS_ENV=test'?

Question

On Rails 4.0.0.rc1, Ruby 2.0.0, after I run a migration, I see the following error when I try to run a test through rspec:

/Users/peeja/.

Answer 1

You can try to set variable BEFORE command, like this. This statement solved my problem:

RAILS_ENV=test rake db:migrate