Issue with Rails migrations Postgresql

I have a strange problem with rails migrations. My db/migrate folder contains migration files and all worked fine. But a few moment ago, I created a new file using rails g migration MigrationName, it generated a new file. then when i had runned rake db:migrate it rollbacks all and my schema version became 0. Now when i run rake db:migrate it does nothing whereas db/migrate contains all my migrations. i tried rake db:reset db:drop db:create db:migrate but no migrations was performed. However it says "migrations are pending run rake db:migrate RAILS_ENV=development" what i've done in vain.

I'm confused. Is anyone ever had this problem?

i've just tried RAILS_ENV=development rake db:migrate --trace and it returns:

** Invoke db:migrate (first_time)
** Invoke environment (first_time)
** Execute environment
** Invoke db:load_config (first_time)
** Execute db:load_config
** Execute db:migrate
** Invoke db:_dump (first_time)
** Execute db:_dump
** Invoke db:schema:dump (first_time)
** Invoke environment 
** Invoke db:load_config 
** Execute db:schema:dump

Running:

rake db:migrate:status 

gives me:

database: database_development 
Status Migration ID Migration Name
--------------------------------------------------
up 000 ********** NO FILE ********** 
down 20150613120151 Devise create users 
down 20150613120734 Devise create admins 
down 20150614114949 Create gender 
down 20150614115642 Create events 
down 20150614142610 Create multi events

I tried so many things: - i dropped my database, restarted postgresql and run again rake db:setup db:migrate. rake db:migrate:status tells me that migrations are pending but it wont migrate. it makes me crazy...

EDIT I manually updated schema_migrations in database adding the timestamps schema:load worked, but when i run rake db:migrate to check if its all good, it rolledback..

EDIT if i manually fill schema_migrations version in database with timestamps, when i do rake db:schema:status they are all to up and my new migration to down, but if i do rake db:migrate it tries to revert as if i wanted to run rake db:rollback