How remove "check this entry: foreign source amount must be entered box 6d"? $42 foreign taxes does not require form 1116! In box 6 b, TT shows "copy 1" and wants 6d info

I had same amt foreign taxes last year and used TT and don't see a form 1116 complete.  Also, I did not encounter this TT error last year. Why does box 6 say "copy 1" if no form 1116 required or completed and I need amount for 6d. Where do I find the amount for 6d? It won't let me leave it blank.