R help - Oct 2005 - write R extenesion issue

Hi, all
I am trying to write a R package. I was able to build and install the 
package with no problem.
However, I got this error when I try to load the library by calling 
library("btRRTest");
------------------error message in loading---------
 > library("btRRTest")
Error in library("btRRTest") : 'btRRTest' is not a valid
package --
installed < 2.0.0?
---------------------------------
--------build message-----------
ason at jasonportal:~/tmp2> R CMD build --force btRRTest
* checking for file 'btRRTest/DESCRIPTION' ... OK
* preparing 'btRRTest':
* checking DESCRIPTION meta-information ... OK
* cleaning src
* checking whether 'INDEX' is up-to-date ... NO
* overwriting 'INDEX' as '--force' was given
* removing junk files
* checking for LF line-endings in source files
* checking for empty directories
* building 'btRRTest_0.0.1.tar.gz'
---------------------------------
-------install message-------
jasonportal:/home/jason/tmp2 # R CMD INSTALL btRRTest_0.0.1.tar.gz
* Installing *binary* package 'btRRTest' ...
* DONE (btRRTest)
----------------------


Can anyone tell me what are the possible causes for this error? Where 
should I start to look?

Thanks

-jason

My package structure is very simple.
I attached it here.
Any help is appreciated.
-ason

jiesheng zhang wrote:
> Hi, all
> I am trying to write a R package. I was able to build and install the 
> package with no problem.
> However, I got this error when I try to load the library by calling 
> library("btRRTest");
> ------------------error message in loading---------
>  > library("btRRTest")
> Error in library("btRRTest") : 'btRRTest' is not a valid
package --
> installed < 2.0.0?
> ---------------------------------
> --------build message-----------
> ason at jasonportal:~/tmp2> R CMD build --force btRRTest
> * checking for file 'btRRTest/DESCRIPTION' ... OK
> * preparing 'btRRTest':
> * checking DESCRIPTION meta-information ... OK
> * cleaning src
> * checking whether 'INDEX' is up-to-date ... NO
> * overwriting 'INDEX' as '--force' was given
> * removing junk files
> * checking for LF line-endings in source files
> * checking for empty directories
> * building 'btRRTest_0.0.1.tar.gz'
> ---------------------------------
> -------install message-------
> jasonportal:/home/jason/tmp2 # R CMD INSTALL btRRTest_0.0.1.tar.gz
> * Installing *binary* package 'btRRTest' ...
> * DONE (btRRTest)
> ----------------------
> 
> 
> Can anyone tell me what are the possible causes for this error? Where 
> should I start to look?
> 
> Thanks
> 
> -jason
> 
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