PG::ConnectionBad FATAL: role “Myname” does not exist

Question

I am trying to use PostgreSQL so that I can deploy to Heroku. However I cannot run localhost anymore why? I get the following message:

PG::ConnectionBad
FATA         


        

Answer 1

@user3408293

1. After the installation create a user for postgresql

   sudo -u postgres createuser --superuser $USER

   sudo -u postgres createuser pgs_root

2. Set user password for the postgresql user

   sudo -u postgres psql postgres

   ( For psql prompt) postgres=# \passsword for ex.- postgres=# \passsword pgs_root

N.B You should also add username and password to different environments in database.yml file.

You can also refer this link: Rails: Error installing pg gem

Answer 2

On Windows, I believe it is a little easier.

Install postgresql and PGAdmin for your system. See this

Create a user named postgres and give it a password. You will be nicely prompted to do this.

Then, when you want to create databases, just right click on your connection and choose New Database. The names of these databases should correspond to what is written in your database.yml

Run rake db:migrate RAILS_ENV=development (development| test| production).

These steps worked for me.

Answer 3

What worked for me was: createuser -P -d -e Myname.

-P  If given, createuser will issue a prompt for the password of the new user.
      This is not necessary if you do not plan on using password authentication.
-d  The new user will be allowed to create databases.
-e  Echo the commands that createuser generates and sends to the server.

If you install Postgresql with homebrew on OSX, there is no default postgres user, and you won't be able to use psql directly without setting up a user first.

Answer 4

Use this command to use your Postgres user:

sudo su - postgres

Now use this command to create a user:

createuser -s -r 'user_name'

Now logout.

The error is resolved.

Answer 5

The error is "role "Myname" does not exist",

create the user "Myname" for Postgresql

sudo -u postgres createuser --superuser Myname

it will solve this issue.

Answer 6

I had to go into my PG admin dashboard and create a db/user there. Unfrotunately it was in a subdirectory different from what the tutorials online said(probably updated directory destination last update). Fortunately I was able to find it and create the table/user there, update my database.yml file and then my app was able to work!