su: ignoring --preserve-environment, it's mutually exclusive with --login Attaching package: ‘shinydashboard’ The following object is masked from ‘package:graphics’: box Attaching package: ‘shinydashboardPlus’ The following objects are masked from ‘package:shinydashboard’: box, dashboardHeader, dashboardPage, dashboardSidebar, messageItem, notificationItem, taskItem The following object is masked from ‘package:shinyWidgets’: progressBar The following object is masked from ‘package:graphics’: box Attaching package: ‘DT’ The following objects are masked from ‘package:shiny’: dataTableOutput, renderDataTable Attaching package: ‘igraph’ The following objects are masked from ‘package:stats’: decompose, spectrum The following object is masked from ‘package:base’: union Attaching package: ‘dplyr’ The following objects are masked from ‘package:igraph’: as_data_frame, groups, union The following objects are masked from ‘package:stats’: filter, lag The following objects are masked from ‘package:base’: intersect, setdiff, setequal, union Attaching package: ‘data.table’ The following objects are masked from ‘package:dplyr’: between, first, last Loading required package: ggplot2 Attaching package: ‘plotly’ The following object is masked from ‘package:ggplot2’: last_plot The following object is masked from ‘package:igraph’: groups The following object is masked from ‘package:stats’: filter The following object is masked from ‘package:graphics’: layout Attaching package: ‘httr’ The following object is masked from ‘package:plotly’: config Attaching package: ‘urltools’ The following object is masked from ‘package:igraph’: path Attaching package: ‘shinyjs’ The following object is masked from ‘package:RPostgres’: show The following object is masked from ‘package:DBI’: show The following object is masked from ‘package:shinyWidgets’: alert The following object is masked from ‘package:shiny’: runExample The following objects are masked from ‘package:methods’: removeClass, show Listening on http://127.0.0.1:44431 createTcpServer: address already in use Error in initialize(...) : Failed to create server Calls: runApp ... startApp -> startServer -> -> initialize Execution halted