Dear Manuel Muñoz Márquez,
8 july 2026 18:32:07 GMT+03:00, "Manuel Muñoz Márquez"
<[email protected]> wrote:
>Dear all.
>
>When using R version 4.6.1 on certain Windows platforms where the
>username contains non-ASCII characters (such as "á"), the command:
>path.expand("~") fails with the following error:
>Error: file name conversion problem -- name too long?
>
>This occurs when the Windows OS does not define the R_USER environment
>variable. In these cases, a call to Sys.getenv("R_USER") returns an
>empty string ("").
Yes, this is a bug: https://bugs.r-project.org/show_bug.cgi?id=18949
The encoding conversion function that should be returning UTF-8 is
called too early in the process startup, so it converts the home
directory path to the wrong encoding (ANSI).
--
Best regards,
Ivan
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