Okay, that makes sense. That's what I thought at first, but the CRAN page
for the package lists the required version as 2.5.0. I'll emai the
package maintainer to alert them of the error.

On Mon, Apr 16, 2012 at 7:54 PM, Duncan Murdoch <murdoch.duncan@gmail.com>wrote:

> On 12-04-16 6:28 PM, Douglas Colkitt wrote:
>
>> I'm running R 2.11.1 on 64 bit Debian. I've had no problem installing any
>> other CRAN packages, but installing package "gbm" fails due to:
>>
>> *** installing help indices
>> ** building package indices ...
>> ** testing if installed package can be loaded
>> Error : .onAttach failed in attachNamespace() for 'gbm', details:
>>   call: NULL
>>   error: 'packageVersion' is not an exported object from 'namespace:utils'
>> ERROR: loading failed
>>
>>
>> In the utils namespace I have
>>
>>> utils::package [tab-tab]
>>>
>> utils::package.contents    utils::package.skeleton
>> utils::packageDescription  utils::packageStatus
>>
>> but no utils::packageVersion. I can install gbm on my MacBook in OS X no
>> problem. Any idea what could be the issue.
>>
>
> R 2.11.1 is very old, and gbm appears to depend on having a newer version
> of R.
>
> Duncan Murdoch
>
>
>> Thanks,
>> Doug Colkitt
>>
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>>
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>
>

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