Cannot create Factory with multiple traits got (ArgumentError Exception: wrong number of arguments (given 1, expected 0)) Ruby 3.0, Rails 6.1.72, factory_bot_rails 6.1.0 about factory_bot_rails HOT 2 CLOSED

you might have another gem that needs to be updated
try running bundle outdated to see which are behind.
its unlikely a bug in this gem.

you could focus on your rails upgrade first. and do ruby 3.0 in a second step. because this type of error is sure ruby 3.0 related.

somewhere a hash is being sent as a param instead of named keyword arguments

method({foo: bar}) versus method(foo: bar)

this was acceptable in 2.7, not in 3.0 anymore.

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I agree with Mathieu. I don't see an obvious bug in the code snippets you shared, so I'm going to close this for now.

If you narrow it down to a bug in factory_bot we can reopen the issue. We'd probably need a runnable reproduction script like https://github.com/thoughtbot/factory_bot/blob/main/.github/REPRODUCTION_SCRIPT.rb to be of much help.

Thank you!

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