I was getting similar errors, which I finally tracked down to the
following:
I had accidentally left an extraneous "test.R" in my pkg/R
directory;
that file contained a system call to an external program that created a
particular file, which I then tried to read into R. The R code that
triggered the error from .tryQuietly was the attempt to open the file. I
figured this out by stripping the "test.R" file down to
system("test1.bin")
con <- file("test.out","r")
where "test1.bin" is a binary executable that produces a file called
"test.out".
Wrapping the lines above in a function, so they don't get executed when R
evaluates the code, also gets rid of the problem.
Apparently (I surmise) R does find the binary (replacing
system("test.bin") with system("junk") produces a warning
message), but
the file that gets created gets cleaned up or put somewhere other than the
current working directory.
--
620B Bartram Hall bolker at zoo.ufl.edu
Zoology Department, University of Florida http://www.zoo.ufl.edu/bolker
Box 118525 (ph) 352-392-5697
Gainesville, FL 32611-8525 (fax) 352-392-3704
