When typing in Console (in RStudio) repeatly get error 'attr' error msg.

RStudio IDE
3

No code. I am in Rstudio and typing into console, with screeen just cleared (Cntrl-L).

>

I start typing, first 2 letters (of library), all good.

> li

as I soon as add b, screen has this.

Error in base::attr(..., exact = TRUE) : 
  formal argument "exact" matched by multiple actual arguments
>lib

if I now add r, message appears twice.

Error in base::attr(..., exact = TRUE) : 
  formal argument "exact" matched by multiple actual arguments
Error in base::attr(..., exact = TRUE) : 
  formal argument "exact" matched by multiple actual arguments
> 
>libr

And eventually looks something like this:

... 
  formal argument "exact" matched by multiple actual arguments
Error in base::attr(..., exact = TRUE) : 
  formal argument "exact" matched by multiple actual arguments
UE) : 
  formal argument "exact" matched by multiple actual arguments
Error in base::attr(..., exact = TRUE) : 
  formal argument "exact" matched by multiple actual arguments
...
> 
> 
>library