Topic on Help talk:OAuth/Flow

its been answered

HI, i tried using flickr2commons but its say "You haven't authorized this application yet!" and when i go to here, this message appear "Sorry, something went wrong connecting this application. Go back and try to connect your account again, or contact the application author.

OAuth token not found, E004"

but in Special:OAuthManageMyGrants it show that i have Allowed OAuth Uploader on All projects . what seem to be the problem.? thank you.

You should report this to the flickr2commons author. At a guess the tool is having problems with the cache backend it uses.

FWIW I can sort of reproduce, although in my case the error is Error retrieving token: mwoauthdatastore-request-token-not-found

Thank you i dont know what happened but its working now.