Q: Rails project can't connect to postgresql I was trying to create a rails project with postgresql
I use this 
>>rails new ReadingList --database=postgresql
>>rails s 

However, it shows this error 
Then, I jump to psql and create readinglist_development by myself, but it still show the same error.

A: In Rails practice, run rake db:create to create the database after creating new Rails project.
I believe the name of the database(readinglist_development) is not matching the database name of ReadingList_development as in database.yml which Rails does not recognize the database created using psql.

A: Its better not to create databases form db workbenches, better to use rails db commands.
