In the personal info section, when it asks if you made money in another state, answer NO, per the reciprocal state instructions, on that page. This will prevent TurboTax from thinking you need to file an IN return.
TT may be flagging that you might need an IN return, for no other reason than that you did one last year. Ignore the prompt.
As others have said, you do not file a work state return, in the case of reciprocal states, unless IN state tax was mistakenly withheld. In IN county tax was withheld (box 19 of your W-2), you cannot get that refunded (it's not a mistake). Local taxes are not part of the reciprocal agreement.
More on MI residents and IN county tax:
https://ttlc.intuit.com/questions/3418266-i-live-in-michigan-and-work-in-indiana-i-m-being-charged-e...
https://ttlc.intuit.com/community/state-taxes/discussion/i-live-in-michigan-work-in-indiana-i-het-mi...
