“pg_dump: invalid option — i” when migrating

Question

When I run rake db:migrate on my Rails project (3.2.22.2) I get pg_dump: invalid option -- i. Here\'s the full trace:

Celluloid 0.1         


        

Answer 1

This error because '-i' method depricated in 9.5.X and higher versions. Bug fixed in Rails -v '4.2.5' and you can update your Rails to this version or upper. But if you need fast method I think you'll satisfied with it (it's just hack, do not use it if you have little bit doubting or you don't agree with it!):

1) find this file: 'postgresql_database_tasks.rb' (in my case it was):

/Users/YourUserName/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activerecord-4.2.4/lib/active_record/tasks/postgresql_database_tasks.rb

2) Open it, find and edit line below with remove '-i' from string:

command = "pg_dump -s -x -O -f #{Shellwords.escape(filename)} #{search_path} #{Shellwords.escape(configuration['database'])}"

3) save this file and start your rake task again! That it!