su: ignoring --preserve-environment, it's mutually exclusive with --login
Warning in readChar(con, 5L, useBytes = TRUE) :
  cannot open compressed file 'Data.RData', probable reason 'Permission denied'
Error in readChar(con, 5L, useBytes = TRUE) : cannot open the connection
Calls: runApp ... eval -> eval -> ..stacktraceon.. -> load -> readChar
Execution halted