R help - Feb 2013 - Issue attaching a dataset

I use to work whit stata dataframe, so, when I use R I type read.dta
Until today I do that without any problem, after type:

mydata<-read.dta("C:/dropbox/dataframe.dta")
attach(mydata)

Everything works great... but today, when I typed:

mydata<-read.dta("C:/dropbox/dataframe.dta")
attach(mydata)

Appeared:

Error in substr(these, 1L, 6L) : invalid multibyte string at
'<f1>'

I searched in google and nothing. Can anyone help me?

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Le lundi 25 f?vrier 2013 ? 20:26 -0300, Pablo Menese a ?crit
:
> I use to work whit stata dataframe, so, when I use R I type read.dta
> Until today I do that without any problem, after type:
> 
> mydata<-read.dta("C:/dropbox/dataframe.dta")
> attach(mydata)
> 
> Everything works great... but today, when I typed:
> 
> mydata<-read.dta("C:/dropbox/dataframe.dta")
> attach(mydata)
> 
> Appeared:
> 
> Error in substr(these, 1L, 6L) : invalid multibyte string at
'<f1>'
> 
> I searched in google and nothing. Can anyone help me?
To be clear: the error appears when running read.dta(), not when calling
attach(), right? And the C:/dropbox/dataframe.dta that fails today is
different from the one that worked yesterday? Are you able to read it in
Stata?

Also, please provide the output of sessionInfo().


Regards