R devel - Sep 2003 - couldn't find function "setClass"

Hello ...

With a new checkout of R-devel (last update was 2003-09-11) we are having
a problem (it seems to be happening to all of us here on a few different
machines) where during install/check/etc when the 'save image' happens
(in
packages using 'save image'):

** save image
Error: couldn't find function "setClass"
Execution halted


This is for all packages that are using classes.

Is anyone else having this problem?

Jeff Gentry <jgentry@jimmy.harvard.edu> writes:
> With a new checkout of R-devel (last update was 2003-09-11) we are having
> a problem (it seems to be happening to all of us here on a few different
> machines) where during install/check/etc when the 'save image'
happens (in
> packages using 'save image'):
> 
> ** save image
> Error: couldn't find function "setClass"
> Execution halted
> 
> 
> This is for all packages that are using classes.
> 
> Is anyone else having this problem?
Did you make sure that you have

require(methods)

early in your R sources for the package?

Depending upon the default set of packages loaded you may not have the
methods package available during install if you don't require it.

Jeff Gentry wrote:
> 
> Hello ...
> 
> With a new checkout of R-devel (last update was 2003-09-11) we are having
> a problem (it seems to be happening to all of us here on a few different
> machines) where during install/check/etc when the 'save image'
happens (in
> packages using 'save image'):
> 
> ** save image
> Error: couldn't find function "setClass"
> Execution halted
> 
> This is for all packages that are using classes.
> 
> Is anyone else having this problem?
> 
> ______________________________________________
> R-devel@stat.math.ethz.ch mailing list
> https://www.stat.math.ethz.ch/mailman/listinfo/r-devel
With packages that do NOT have a namespace but DO have saved images,
yes. (!)

The problem seems to be that the current version of INSTALL doesn't end
up with library(methods) in this branch (related to --vanilla ?).  One
workaround seem to be to change INSTALL (or scripts/INSTALL.in) as
follows:

522c522
<       code_cmd="eval cat \"${code_file}\""
---
>       code_cmd="eval echo \"library(methods)\"; cat
\"${code_file}\""
to explicitly attach the library.  This may in fact be the right fix,
but I'm confused as to why this is happening now.

(For me it also works to not use saved images.)

John

-- 
John M. Chambers                  jmc@bell-labs.com
Bell Labs, Lucent Technologies    office: (908)582-2681
700 Mountain Avenue, Room 2C-282  fax:    (908)582-3340
Murray Hill, NJ  07974            web: http://www.cs.bell-labs.com/~jmc