The workaround is to delete the non-zero value in the error check. Then go back to Deductions & Credits and enter the zero there, in the Donations to Charity topic. Then click Done with Donations.
The contribution will not appear on Form 1040 line 10b. The error you saw should only get flagged if you enter it when prompted after you finish Deductions & Credits and the software tells you that you are getting the standard deduction. It should not get flagged if you enter it in Donations to Charity.
@kaukabhishek
