# Is discourse-plugin-linkedin-auth now incompatible with Discourse v2.7.0.beta7 and below?
**URL:** https://meta.discourse.org/t/is-discourse-plugin-linkedin-auth-now-incompatible-with-discourse-v2-7-0-beta7-and-below/216127
**Category:** Extras
**Created:** [January 26, 2022, 9:31pm UTC](https://meta.discourse.org/t/is-discourse-plugin-linkedin-auth-now-incompatible-with-discourse-v2-7-0-beta7-and-below/216127 "2022-01-26T21:31:40Z")
**Posts on this page:** 1
**Page:** 1
### Author:  [@frank.manuel](https://meta.discourse.org/u/frank.manuel)
#### Post date: [January 26, 2022, 9:31pm UTC](https://meta.discourse.org/t/is-discourse-plugin-linkedin-auth-now-incompatible-with-discourse-v2-7-0-beta7-and-below/216127/1 "2022-01-26T21:31:40Z")
Discourse uses ActiveRecord 6.1.3.1 starting from version 2.7.0.beta8, and before that, it used ActiveRecord 6.0.3.5. Which is all good, except that a migration was added to Discourse Plugin Linkedin Auth (20211203171247\_migrate\_linkedin\_user\_info.rb), presumably on 2021-12-03, that causes this error when trying to rebuild:
```plaintext
Caused by:
ArgumentError: Unknown migration version "6.1"; expected one of "4.2", "5.0", "5.1", "5.2", "6.0"
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration/compatibility.rb:11:in `find'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:544:in `[]'
/var/www/discourse/plugins/discourse-plugin-linkedin-auth/db/migrate/20211203171247_migrate_linkedin_user_info.rb:3:in `'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `require'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:23:in `block in require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:92:in `register'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:22:in `require_with_bootsnap_lfi'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/bootsnap-1.7.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:31:in `require'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/zeitwerk-2.4.2/lib/zeitwerk/kernel.rb:34:in `require'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1010:in `load_migration'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1006:in `migration'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1002:in `disable_ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1368:in `use_transaction?'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1360:in `ddl_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1309:in `execute_migration_in_transaction'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1281:in `block in migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1280:in `each'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1280:in `migrate_without_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1229:in `block in migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1382:in `with_advisory_lock'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1229:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1061:in `up'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/migration.rb:1036:in `migrate'
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/activerecord-6.0.3.5/lib/active_record/tasks/database_tasks.rb:238:in `migrate'
/var/www/discourse/lib/tasks/db.rake:215:in `block in '
/var/www/discourse/vendor/bundle/ruby/2.7.0/gems/rake-13.0.3/exe/rake:27:in `'
/usr/local/bin/bundle:23:in `load'
/usr/local/bin/bundle:23:in `'
Tasks: TOP => db:migrate
```
There’s no branch that I can find on the plugin either to pull an older version when installing my plugin, so I have to disable the plugin on my older Discourse version.
(Note, we do intend on upgrading to 2.7.0; we just wanted to build a clone of the existing (old) Discourse we have, but can’t because the plugin migration is failing)
Thanks.