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

Attaching package: ‘bs4Dash’

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

    actionButton, column, insertTab, tabsetPanel

The following object is masked from ‘package:graphics’:

    box


Attaching package: ‘shinyWidgets’

The following object is masked from ‘package:bs4Dash’:

    progressBar


Attaching package: ‘DT’

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

    dataTableOutput, renderDataTable


Attaching package: ‘CVXR’

The following object is masked from ‘package:stats’:

    power

Loading required package: survival

Listening on http://127.0.0.1:38055
createTcpServer: address already in use
Error in initialize(...) : Failed to create server
Calls: runApp ... startApp -> startServer -> <Anonymous> -> initialize
Execution halted