R command

I have currently built MicrobiomeAnalystR in R. However, there are no other problems, but the PlotTaxaAundanceBar command output does not produce pdf or png files, but only csv files.

Is there any solution?
There seems to be a command problem.

Use command
PlotTaxaAundanceBar(mbSet, “Phylum_sample”,“Genus”,“GROUP”, “none”, “barnorm”,10, “set3”,“sum”,10, “bottom”, “F”, “pdf”)

The following commands work fine.
PlotTaxaAbundanceBarSamGrp(mbSet, “Phylum_Group”,“Phylum”,“GROUP”, “none”, “barnorm”,10,“set3”,“sum”, 10, “bottom”, “F”, “pdf”)