[Potlatch-dev] Can't register potlatch with my OSM server

[Alexandru]

I did exactly how it is written here : "
To use the Potlatch 2 editor you need to register it as an OAuth 
application. Start by logging into the web site and clicking 'oauth 
settings' on your user page, then 'Register your application'. When 
prompted, enter the name of your instance (e.g. "Ruritanian Potlatch 2") and its URL (e.g. "http://openstreetmap.rt/potlatch2"). Everything else can be left with the default values. 
Take the "consumer key" which is generated and add it to 
config/application.yml in your rails tree as the value of the 
"potlatch2_key" configuration value. 
"

I assumed that my potlatch url is localhost:3000/edit ( because that's how i reach potlatch in a browser) and so i typed it in the corresponding field.
In config/application.yml i have uncommented the  
"potlatch2_key" and entered the consumer key, like this:
  potlatch2_key: "XXXXXXXXXXXXXXXX".
Then i went to localhost:3000/edit but i still get the message that i didn't registered it. What to do?
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