Desktop applications only support the oauth_callback value 'oob'

[elagin]

I get error:

com.google.api.client.http.HttpResponseException: 401 Authorization Required
<?xml version="1.0" encoding="UTF-8"?>
<hash>
  <error>Desktop applications only support the oauth_callback value 'oob'</error>
  <request>/oauth/request_token</request>
</hash>

When I changed OAUTH_CALLBACK_URL value to "oob" this error code no longer occur.

[elagin]

Now WebView show me 7 digit twitter pin and requires to enter it in the application. How to do it?