The message you are seeing in TurboTax may be trying to tell you that there is not a problem with the Form 1099-NEC itself, but it needs to be tied to specific Schedule C business (or Schedule F farm).
Form 1099-NEC is used to report self-employment or independent contractor income when you are being paid by a company not treating you as their employee.
Income from being self-employed or an independent contractor should be reported on Schedule C Business Income and Expenses.
So, to enter a Form 1099-NEC, you first need to create a Schedule C for your business and then enter the Form 1099-NEC within that same section of your return.
Use these steps to go to the Schedule C section of your return and get started.
Once you have started the Schedule C, continue through that section to Add Income and enter the Form 1099-NEC plus any other income you received for that self-employed business.
Don't forget you can also claim expenses related to your business.
For more details and information, take a look at the following TurboTax article: What is Form 1099-NEC?