Redirecting to authentication dialog - "An error occurred. Please try again later"

Question

I have had the same problem as you.

From the Facebook Developers Apps page, make sure that the Sandbox Mode is disabled.

I had the same problem after changing the domain of my site. Altough I properly changed the request_uri parameter and updated my app settings with the new domain, the error kept showing up. Then I realized that the ID and the SECRET ID of my Facebook APP had automatically changed with no warning!! The whole thing started working again using the new ID.

This was happening to me also but all the api keys, secrets and stuff were correct. What I found is that my app was running in sandbox mode. Go to your app settings in https://developers.facebook.com/ click the advanced settings tab and check to see if your app is in sandbox mode. If it is disable it and try again. Let us know if it works.

I was getting this error because I was starting from http://mysite.com, but had specified http://WWW.mysite.com in my Facebook settings - the www mattered... I ended up solving by using .httpaccess to always kill the "www", and pointing FB to http://mysite.com

worst. subdomain. ever. :u)

When working with Dialogues, Facebook provide a 'show_error' attribute that defaults to no but can be set to true in a Development environment and is really helpful for debugging purposes.

show_error - If this is set to true, the error code and error description will be displayed in the event of an error.

Instructions of it's use can be found in the Facebook Docs.

I'd been debugging "An Error occurred. Please try later." dialogue before i found this attribute in the docs. Once i started using it, i could see the following message too:

API Error Code: 191

API Error Description: The specified URL is not owned by the application

Error Message: redirect_uri is not owned by the application.