[R] R load error

[Yaacov Petscher]

Greetings - I'm using RStudio and recently updated both it and R. When loadings up, I'm now receiving the following error:

Error: ReadItem: unknown type 63, perhaps written by later version of R

I've tried using rm(list=ls()) rm(list=ls(all.names=TRUE)) and detach() but nothing works in R. Within RStudio it just continues to try and load and I'm unable to interrupt or restart. Any ideas would be greatly appreciated.

Yaacov Petscher, Ph.D.
Associate Director, Florida Center for Reading Research
Senior Research Associate, Regional Educational Laboratory-Southeast (REL-SE) at Florida State University
2010 Levy Ave
Suite 100
Tallahassee, Florida, 32310
850-645-8963 (p)
850-644-9085 (f)
http://www.fcrr.org/for-researchers/petscher2.asp



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[Duncan Murdoch]

On 27/07/2015 3:03 PM, Yaacov Petscher wrote:
> Greetings - I'm using RStudio and recently updated both it and R. When loadings up, I'm now receiving the following error:
>
> Error: ReadItem: unknown type 63, perhaps written by later version of R
>
> I've tried using rm(list=ls()) rm(list=ls(all.names=TRUE)) and detach() but nothing works in R. Within RStudio it just continues to try and load and I'm unable to interrupt or restart. Any ideas would be greatly appreciated.

For the RStudio error (retrying ad infinitum), you should report the
problem to them. This list is just for R.

The likely cause of that error in R is a corrupted file. That might be
.Rdata, or whatever file you're trying to load or read.

Duncan Murdoch

[John Kane]

Try restarting R-Studio. I have found that every once in a while it seems to do something squirrelly but I have never isolated the problem enough to do a report.

Otherwise,perhaps run R in a terminal and see if it will load the data from there to check if the file is actually okay.

John Kane
Kingston ON Canada

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