App is not generating the Oauth2 token using doorkeeper gem

[bhardwajrahul919]

I have upgraded my rails app from rails version 5.* to 7 also I have upgraded doorkeeper gem from version 4.2.6 to 5.6.6 but now it is not generating the Oauth2 token.

• when I am using the same old version of doorkeeper 4.2.6 , the apps is not loading . it is giving below error.

NoMethodError: undefined method `arity' for {:class_name=>"Doorkeeper::Application", :inverse_of=>:access_grants, :optional=>true}:Hash
if scope && scope.arity == 0

[nbulaj]

You should check if you have any monkey-patching for Doorkeeper internals, anything related to it's models / configs / classes

[nbulaj]

Any news here @bhardwajrahul919 ? Have your resolved your issue?