installing a new package

At the risk of oversimplifying, there are three steps to developing 
and using a package:

1) build
2) install
3) load

Evidently your package does steps 1 and 2 but not 3.

Furthermore, it tells you, "not a valid package", and says something 
that is suggestive of a version problem:
   "installed < 2.0.0"

I think you have to look very carefully at your package and look for 
what is invalid about it. There must be some requirement of package 
structure, or contents, or version of something, that your package 
doesn't meet or violates.

Since your package can be installed, go into R, and try
   require(HighProbability)
but set the verbose argument to something that gives more information 
than the default. Maybe that will give some helpful information, more 
than the check provides.

Either that, or delve deeply into the CMD check script(s) and find 
out exactly what can trigger the error message.

Anyway, that's the best I can come up with, without actually having 
the package files.

-Don

At 2:52 PM -0400 3/28/08, zmontaze at uottawa.ca wrote:

Dear all,
I have prepared a new package to install in R, I tried to check my package
and I got the following message
------------------------------------------------------------------------
232sub141:~ zahra$ R CMD check /Users/zahra/Desktop/HighProbability
* checking for working latex ... OK
* using log directory '/Users/zahra/HighProbability.Rcheck'
* using R version 2.6.2 (2008-02-08)
* checking for file 'HighProbability/DESCRIPTION' ... OK
* this is package 'HighProbability' version '1.0-3'
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking whether package 'HighProbability' can be installed ... OK
* checking package directory ... OK
* checking for portable file names ... OK
* checking for sufficient/correct file permissions ... OK
* checking DESCRIPTION meta-information ... OK
* checking top-level files ... OK
* checking index information ... OK
* checking package subdirectories ... OK
* checking R files for non-ASCII characters ... OK
* checking R files for syntax errors ... OK
* checking whether the package can be loaded ... ERROR
Error in library(HighProbability) :
  'HighProbability' is not a valid package -- installed < 2.0.0?
Execution halted

It looks like this package has a loading problem: see the messages for
details.
------------------------------------------------------------------------

I don't know what the "Error in library(package name)" means and how can I
solve it. I work with Mac.
I'll appreciate it if you could help me.
All the best,
Zahra