When you load your old workspace, try
conflicts(detail = TRUE)
The workspace contains a lazyload promise from that very old version,
with the name of a system function. You need to delete that promise
from the workspace, and the command above should help you find which
it is.
One guess is
Dear useRs,
Today I've encountered a weird unexpected behaviour. It is not a real
problem for me and I can workaround it. But I'm very curious of what
could have caused it.
Starting an R session in a directory with an old .RData my first command
was
> library(MASS)
and i got
Errore in .Call("
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