R devel - Jan 2006 - R CMD check, NAMESPACE, import: bad error?

I'm seeing errors with R CMD check that I don't understand when
checking a package that uses a NAMESPACE file with an import
directive.  The imported package is listed in the DESCRIPTION file in
the Imports field.

DESCRIPTION contains:

   Imports: arules

NAMESPACE contains:

   import(arules)

The package builds without warnings and installs and loads just fine.
But check has this to say:

$ R CMD check DNAhelperseth_1.0.tar.gz 
[snip]
* using Version 2.3.0 Under development (unstable) (2006-01-15 r37092) 
* checking for file 'DNAhelperseth/DESCRIPTION' ... OK
[snip]
* checking R files for library.dynam ... OK
* checking S3 generic/method consistency ... WARNING
Error: package/namespace load failed for 'DNAhelperseth'
Call sequence:
2: stop(gettextf("package/namespace load failed for '%s'",
libraryPkgName(package)),        call. = FALSE, domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted
See section 'Generic functions and methods' of the 'Writing R
Extensions'
manual.
* checking replacement functions ... WARNING
Error: package/namespace load failed for 'DNAhelperseth'
Call sequence:
2: stop(gettextf("package/namespace load failed for '%s'",
libraryPkgName(package)),        call. = FALSE, domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted
In R, the argument of a replacement function which corresponds to the right
hand side must be named 'value'.
* checking foreign function calls ... WARNING
Error: package/namespace load failed for 'DNAhelperseth'
Call sequence:
2: stop(gettextf("package/namespace load failed for '%s'",
libraryPkgName(package)),        call. = FALSE, domain = NA)
1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose = FALSE)
Execution halted
See section 'System and foreign language interfaces' of the 'Writing
R
Extensions' manual.
* checking Rd files ... OK
* checking for missing documentation entries ... ERROR
Error: package/namespace load failed for 'DNAhelperseth'

G'day Seth,
>>>>> "SF" == Seth Falcon <sfalcon at fhcrc.org>
writes:
    SF> I'm seeing errors with R CMD check that I don't understand
    SF> when checking a package that uses a NAMESPACE file with an
    SF> import directive.
I came sometime ago across a similar problem and it took me some time
to figure it out.  In my case it was that a .Fortran() call didn't
have a "package=" argument.  My advise would be to check all .C() and
.Fortran() calls in your package and add the "package=" argument if it
is missing.

I also guess that if you temporarily remove the NAMESPACE file, the
following step in the checking process:

      * checking foreign function calls ... WARNING
      Error: package/namespace load failed for 'DNAhelperseth'
      Call sequence:
      2: stop(gettextf("package/namespace load failed for
'%s'", libraryPkgName(package)),        call. = FALSE, domain = NA)
      1: library(package, lib.loc = lib.loc, character.only = TRUE, verbose =
FALSE)
      Execution halted
      See section 'System and foreign language interfaces' of the
'Writing R
      Extensions' manual.

will tell you which call the culprit is.  

Cheers,

        Berwin