[R] Mplus in R

[Birhanu Worku]

Hi everyone
why this code is not running ?
here is it;

library(MplusAutomation)
res <- mplusModeler(
  mplusObject(
    MODEL = "mpg ON wt hp; wt WITH hp;", rdata = mtcars),
  "mtcars.dat", run = 1L)
summary(res)

note that mtcars is the data in r

The out put;

"No R variables to use specified.
Selected automatically as any variable name that occurs in the MODEL or
DEFINE section.
Wrote model to: mtcars.inp
Wrote data to: mtcars.dat

Running model: mtcars.inp
System command: C:\Windows\system32\cmd.exe /c cd "C:\Users\Bira\Documents"
&& "Mplus" "mtcars.inp"
Error in getOutFileList(target, recursive, filefilter) :
  Specified target does not exist.
  Target: mtcars.out
In addition: Warning messages:
1: In prepareMplusData(df = object$rdata[i, object$usevariables], filename
= dataout,  :
  The file ‘mtcars.dat’ currently exists and will be overwritten
2: running command 'C:\Windows\system32\cmd.exe /c cd
"C:\Users\Bira\Documents" && "Mplus" "mtcars.inp"' had status 1
> summary(res)
Error in summary(res) : object 'res' not found"


Thank you

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