plotMB post script error

[reidbm]

The plotMB function is reporting the following error. Any help debugging would be greatly appreciated!

plotMB(results=results,rsid="rs1256930",effect="strong") Warning messages: 1: running command 'gswin32c.exe -q -dBATCH -dNOPAUSE -sDEVICE=ps2write -sOutputFile=C:\Users\reidbm\AppData\Local\Temp\RtmpITT4Lb\file146c10e8eb -sstdout=C:\Users\reidbm\AppData\Local\Temp\RtmpITT4Lb/stack.ps.xml capturestack.ps' had status 127 2: In .local(GdObject, ...) : There have been errors in the detail plotting function: Error in PostScriptTrace(ps.file, paste0(ps.file, ".xml")) : status 127 in running command 'gswin32c.exe -q -dBATCH -dNOPAUSE -sDEVICE=ps2write -sOutputFile=C:\Users\reidbm\AppData\Local\Temp\RtmpITT4Lb\file146c10e8eb -sstdout=C:\Users\reidbm\AppData\Local\Temp\RtmpITT4Lb/stack.ps.xml capturestack.ps'