[RkWard-devel] Fehler in fun(...) : Tcl already loaded

[Thomas Friedrichsmeier]

On Tuesday 18 April 2006 22:38, Stefan Rödiger wrote:
> While trying to install a new package I got following error message:
>
> Fehler in fun(...) : Tcl already loaded
> Fehler: .onLoad in 'loadNamespace' für 'tcltk' fehlgeschlagen
>
> After starting rkward as root, then downloading the new package list and
> restarting as normal user everything worked normal.
> Any comments?
>
> Anyway, as far as I know one must be "root" in order to install new
> packages. User might  stumble over this and wonder why it dosn't work.
> Maybe a statement like "You must be root" would be more meaningful. Am I
> wrong?

Package management definitely needs to be reworked, and I hope to tackle this 
soon. Most importantly, the current solution does not handle package 
dependencies at all, and effectively this makes installing some packages next 
to impossible.
What we will have to do is to use Rs install.packages () internally, to do all 
the dependency handling. Unfortunately, this means, that we can not insert a 
kdesu-mechanism at all, as we do currently. I had a short conversation with 
the R people about this, and it seems the "recommended" way of dealing with 
this is to use "user" "libraries", i.e. install the packages to a location 
where the user has write access, and tell R, where to look for those 
packages.
When I am in the process of reworking the package management internally, it 
may also be worth while to consider the package management GUI. Do we really 
need three separate pages with a list of packages on each? Could this be 
merged into a single list? What would the GUI look like in order to be 
intuitively useable?
If somebody has ideas on this, I'd like to hear about it!

Regards
Thomas
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