rails db:migrateが出来ない

マイグレーションファイルに必要な記述をした後にrails db:migrateをすると以下のようなエラー文が出て困っています。

== 20201204124542 CreateComments: migrating ===================================
-- create_table(:comments)
rails aborted!
StandardError: An error has occurred, all later migrations canceled:

Mysql2::Error: Table 'protospace32566_development.user_ids' doesn't exist
/Users/lein/projects/protospace32566/db/migrate/20201204124542_create_comments.rb:3:in `change'
/Users/lein/projects/protospace32566/bin/rails:9:in `<top (required)>'
/Users/lein/projects/protospace32566/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'

Caused by:
ActiveRecord::StatementInvalid: Mysql2::Error: Table 'protospace32566_development.user_ids' doesn't exist
/Users/lein/projects/protospace32566/db/migrate/20201204124542_create_comments.rb:3:in `change'
/Users/lein/projects/protospace32566/bin/rails:9:in `<top (required)>'
/Users/lein/projects/protospace32566/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'

Caused by:
Mysql2::Error: Table 'protospace32566_development.user_ids' doesn't exist
/Users/lein/projects/protospace32566/db/migrate/20201204124542_create_comments.rb:3:in `change'
/Users/lein/projects/protospace32566/bin/rails:9:in `<top (required)>'
/Users/lein/projects/protospace32566/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'

Caused by:
Mysql2::Error: Cannot add foreign key constraint
/Users/lein/projects/protospace32566/db/migrate/20201204124542_create_comments.rb:3:in `change'
/Users/lein/projects/protospace32566/bin/rails:9:in `<top (required)>'
/Users/lein/projects/protospace32566/bin/spring:15:in `<top (required)>'
bin/rails:3:in `load'
bin/rails:3:in `<main>'
Tasks: TOP => db:migrate
(See full trace by running task with --trace)

マイグレーションファイルの記述です

class CreateComments < ActiveRecord::Migration[6.0]
  def change
    create_table :comments do |t|
      t.text :text,               null: false
      t.references :user_id,      null: false, foreign_key: true
      t.references :prototype_id, null: false, foreign_key: true
      t.timestamps
    end
  end
end

mysql2のエラーについても調べてみましたが解決せず‥
DB削除して一からやり直してもこのエラーが出ます。
どなたかご教授いただけると大変助かります。

ruby:2.6.5
Rails 6.0.3.4