[Rd] Package Building and Name Space

[Paul Gilbert]

Sorry, once again I was totally confused.

Paul

Duncan Murdoch wrote:
> On 1/24/2008 10:00 AM, Paul Gilbert wrote:
> 
>> I find the error message
>>
>>  >>>>>Error in MyPackage::MyFunction :
>>
>> is a bit misleading.  Could it be changed to
>>
>>      Error in Package::Function
> 
> 
> I believe "MyPackage" was either the actual name of the package, or what 
> Johannes substituted for it.  But this whole thread would be a lot 
> clearer if we had an actual reproducible example to look at, rather than 
> a report of it that includes typos and substitutions.
> 
>> perhaps with a hint: "Possibly Package is not exporting a NAMESPACE."
>> (At least, I think this does not work unless Package has a namespace.)
> 
> 
> The message looked pretty clear to me, and agrees with the 
> documentation.  For "::" to work, the package needs a namespace OR must 
> be on the search path.  Apparently neither of those was true in this case.
> 
> Duncan Murdoch
> 
>>
>> Paul Gilbert
>>
>> Johannes Graumann wrote:
>>
>>> On Wednesday 23 January 2008 18:24:15 Duncan Murdoch wrote:
>>>
>>>> On 1/23/2008 11:31 AM, Johannes Graumann wrote:
>>>>
>>>>> On Wednesday 23 January 2008 17:25:38 Duncan Murdoch wrote:
>>>>>
>>>>>> On 1/23/2008 11:11 AM, Johannes Graumann wrote:
>>>>>>
>>>>>>> ... sorry for reposting this in a more appropriate forum than
>>>>>>> r.general ...
>>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> I just don't get this and would appreciate if someone could write a
>>>>>>> line or two: I'm trying to build this package and it stops 
>>>>>>> installing
>>>>>>> after I add
>>>>>>>
>>>>>>> the following to the NAMESPACES file:
>>>>>>>
>>>>>>>> importFrom(gsubfn,strapply)
>>>>>>>
>>>>>>>
>>>>>>> The error during the package test is:
>>>>>>>
>>>>>>> Error in MyPackage::MyFunction :
>>>>>>>  package 'MyPackage' has no name space and is not on the search path
>>>>>>> Calls: <Anonymous> ... <Anonymous> -> switch -> sys.source -> 
>>>>>>> eval ->
>>>>>>> eval -> ::
>>>>>>> Execution halted
>>>>>>>
>>>>>>> 'MyFunction' contains 'strapply' from gsubfn.
>>>>>>>
>>>>>>> Please tell me where I err.
>>>>>>
>>>>>>
>>>>>> The file is called NAMESPACE, not NAMESPACES.
>>>>>
>>>>>
>>>>> And that's what it's called here ... sorry for the typo above. The 
>>>>> error
>>>>> remains the same.
>>>>
>>>>
>>>> With the obscuring you've done it's pretty hard to be sure, but I'd
>>>> assume you have the expression MyPackage::MyFunction somewhere in your
>>>> package, but MyPackage doesn't have a namespace.  In that case, you 
>>>> have
>>>> to make sure it is attached via
>>>>
>>>> library(MyPackage)
>>>>
>>>> or
>>>>
>>>> require(MyPackage)
>>>>
>>>> before you can use the "::" operator.
>>>
>>>
>>>
>>> But it's "mypackage" I'm trying to check ... can't attach that yet 
>>> since I need to package and install it first ...
>>>
>>> Joh
>>>
>>>
>>> ------------------------------------------------------------------------
>>>
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>>
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La version française suit le texte anglais.

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