su: ignoring --preserve-environment, it's mutually exclusive with --login

Attaching package: ‘DT’

The following objects are masked from ‘package:shiny’:

    dataTableOutput, renderDataTable

Error in library(bs4Dash) : there is no package called ‘bs4Dash’
Calls: runApp ... sourceUTF8 -> eval -> eval -> ..stacktraceon.. -> library
Execution halted