I am trying to get a graph for a multiple response question. I have read the resource and the mrtab function has been very helpful. However when I run the mrgraph command, I get error r(459) which says "variables R _variables do not uniquely identify the observations" I really need help in doing this. Sample data in excel attached

The command I have used is illustrated below

mrgraph bar farmact_manualringweeding farmact_manualpathweeding farmact_chemicalringweeding farmact_chemicalpathweeding farmact_prunning farmact_weedgrowtheradication farmact_manualweeding farmact_chemicalweeding farmact_boxfrondstacking farmact_leguminouscrop farmact_emptyfruitformulching farmact_emptyfruitforerosion farmact_other

and in each of farmact* 1 represents TRUE and 0 represents FALSE.