ActiveRecord::Migration is not supported.

[m-abdurrehman]

After adding gem and migration when I tried to run migration, it gives this error.

After specifying rails version error goes.

I think it should be solved on gem side

=> Working syntax class CreateComments < ActiveRecord::Migration[6.1]
=> Not Working syntax class CreateComments < ActiveRecord::Migration

rails aborted!
StandardError: An error has occurred, this and all later migrations canceled:

Directly inheriting from ActiveRecord::Migration is not supported. Please specify the Rails release the migration was written for:

  class CreateComments < ActiveRecord::Migration[4.2]

Caused by:
StandardError: Directly inheriting from ActiveRecord::Migration is not supported. Please specify the Rails release the migration was written for:

  class CreateComments < ActiveRecord::Migration[4.2]

[CloCkWeRX]

I've forked this project to https://github.com/fatfreecrm/acts_as_commentable/ which should resolve this issue.