ArgumentError: Index name 'index_rates_on_rater_id' on table 'rates' already exists
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ArgumentError: Index name 'index_rates_on_rater_id' on table 'rates' already exists
When running migrations Rails 5.1
Got this too. AFAIK, this is caused by the second migration created by Ratyrate, the one with name "[whatever]_create_rates.rb". Ratyrate attempts to create an index, add_index :rates, :rater_id, but, as I see, it is automatically created by the line t.belongs_to :rater. See here, "Add an appropriate index. Defaults to true".
I solved it by simply commenting the index line before migrating. Might need some extra attention. I'm going to try and see which code generates it.
I've got this error. Please fixed it :(
thx.