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Re: Package won't load after v.7 upgrade

  • To: mathgroup at
  • Subject: [mg102319] Re: Package won't load after v.7 upgrade
  • From: David Reiss <dreiss at>
  • Date: Wed, 5 Aug 2009 05:44:52 -0400 (EDT)
  • References: <h58rbr$q3o$>

Hmmmm.  I assume that you are placing the integExp.m file in
ToFileName[{$UserAddOnsDirectory, "Applications"}].  If so then this
should work so long as the BeginPackage statement in integExp.m  reads


(i.e., that the context in the BeginPackage is integExp` and not
something more complex such as MyContext`integExp`)

and also so long as, for example the filename integExp.m  doesn't have
any accidental added spaces.

Have you taken a peak inside the integExp.m file to make sure that it
isn't corrupted in any way?

...just some thoughts on what might have gone wrong...


On Tue, Aug 4, 2009 at 8:19 PM, Porscha Louise McRobbie
<pmcrobbi at> wrote:
> Thanks for the info.
> However, if I place my package integExp.m in the directory below (which is what I'd done originally, but since it didn't work I thought it was wrong), I still get the errors:
> Needs["integExp`"]
> Needs::nocont: Context integExp` was not created when Needs was evaluated. >>
> ?integExp
> Information::notfound: Symbol integExp not found. >>
> I do see the correct directory listed with $Path.  Any other thoughts?
> Quoting David Reiss <dbreiss at>:
>> Hi,
>> As a general rule you **never** want to put your applications within
>> the directory.  This modifies your Mathematica
>> application itself and, when you upgrade your Mathematica version
>> everything that you place there will be removed.  Rather you want to
>> put it in:
>> ToFileName[{$UserAddOnsDirectory, "Applications"}]
>> This directory is persistent through upgrades to Mathematica and is
>> always contained in $Path.
>> I hope thei helps.
>> --David
>> On Aug 4, 4:26 am, Porscha Louise McRobbie <pmcro... at> wrote:
>>> I should add to my previous message that I also checked the global
>>> variable $Path, and didn't see the path to my AddOn listed there. I
>>> tried  using
>>> Prepend[$Path,"/Applications/"]
>>> After which when I type $Path I do see the path to my AddOn. However,
>>> it still won't load.
>>> Thanks,
>>> Porscha

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