Starting PostgreSQL database for Rails app - ruby-on-rails

Question

I'm trying to get my Rails app connected to a PostgreSQL database.
I successfully ran rake db:create
Now when I run rake db:migrate I get the following error ...
===============================================================================
HINT:
You might not have the 'pgcrypto' PostgreSQL extension installed.
Install using:
CREATE extension IF NOT EXISTS pgcrypto SCHEMA pg_catalog;
You can also install it in the 'template1' database for future databases.
===============================================================================
rake aborted!
An error has occurred, this and all later migrations canceled:
PG::UndefinedFunction: ERROR: function gen_salt(unknown) does not exist
LINE 3: (SELECT gen_salt('bf') AS salt)
^
I tried installing the pgcrypto extension, but I get the same error.
I also tried running rake db:setup and I get this ...
============================================================
WARNING: Pulse calls are disabled until the application is restarted.
rake aborted!
No such file or directory # rb_sysopen - /Users/kweihe/pmpaware-webapp/db/structure.sql
/Users/kweihe/pmpaware-webapp/lib/tasks/db.rake:8:in `initialize'
/Users/kweihe/pmpaware-webapp/lib/tasks/db.rake:8:in `new'
/Users/kweihe/pmpaware-webapp/lib/tasks/db.rake:8:in `block (3 levels) in <top (required)>'
/Users/kweihe/.rvm/gems/ruby-2.1.6/gems/activerecord-3.2.22/lib/active_record/railties/databases.rake:484:in `block (3 levels) in <top (required)>'
/Users/kweihe/.rvm/gems/ruby-2.1.6/bin/ruby_executable_hooks:15:in `eval'
/Users/kweihe/.rvm/gems/ruby-2.1.6/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => db:structure:load => db:structure:pg_crypto_preflight
(See full trace by running task with --trace)
FIXED
I installed the extension in the wrong db. Went through PgAdmin and installed in correct db, now migrate runs successfully

Answer 1

I installed the extension in the wrong db. Went through PgAdmin and installed in correct db, now migrate runs successfully
Installed extension by running this in the query field:
CREATE extension IF NOT EXISTS pgcrypto SCHEMA pg_catalog;