On 27/04/2019 2:46 p.m., Duncan Murdoch wrote:
On 27/04/2019 10:30 a.m., Len Weil wrote:
Gentlemen,
I've observed a suspected bug in R-3.60 for Windows 10.
I am using the latest R version, but I have observed the same error in all
releases: alpha, beta RC and released.
Also the same issue occurs in the 32 and 64 bit GUI versions. The program
header I invoke is:
R version 3.6.0 Patched (2019-04-26 r76431) -- "Planting of a Tree"
Copyright (C) 2019 The R Foundation for Statistical Computing
Platform: x86_64-w64-mingw32/x64 (64-bit)
Specifically, the menu selection Packages -> install packages fails.
When invoked, it simply echoes: utils:::menuInstallPkgs() and returns the
prompt.
I found the underlying code with the getAnywhere function.
It displays:
getAnywhere(menuInstallPkgs)
A single object matching 'menuInstallPkgs' was found
It was found in the following places
namespace:utils
with value
function (type = getOption("pkgType"))
{
install.packages(NULL, .libPaths()[1L], dependencies = NA,
type = type)
}
<bytecode: 0x0000000016c6a730>
<environment: namespace:utils>
The first argument, NULL, prevents the underlying function install.packages
from working.
No, it is documented to trigger presentation of a list of packages to
install. That list takes time to download from CRAN, so perhaps you are
just too impatient to wait for it, or perhaps it really is broken: but
the NULL is not the issue.
Sorry, you were right. The docs in 3.6.0 have changed: now the pkgs
argument must be missing to trigger the menu. The NULL is not missing,
it is interpreted as specifying no packages.
Duncan Murdoch
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