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

• To: mathgroup at smc.vnet.net
• Subject: [mg102357] Re: [mg102315] Re: Package won't load after v.7 upgrade
• From: "David Park" <djmpark at comcast.net>
• Date: Thu, 6 Aug 2009 06:33:27 -0400 (EDT)
• References: <h58rbr$q3o$1@smc.vnet.net> <13039412.1249467921601.JavaMail.root@n11>

Create a Folder MyPackages, say, in the Applications folder. Make your
BeginPackage statement:

BeginPackage["MyPackages`integExp`"]

Load with:

Needs["MyPackages`integExp`"]


David Park
djmpark at comcast.net
http://home.comcast.net/~djmpark/  


From: Porscha Louise McRobbie [mailto:pmcrobbi at umich.edu] 

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 gmail.com>:

> Hi,
>
> As a general rule you **never** want to put your applications within
> the Mathematica.app 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
> http://scientificarts.com/worklife
>
>
>
>
> On Aug 4, 4:26 am, Porscha Louise McRobbie <pmcro... at umich.edu> 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/Mathematica.app/AddOns/ExtraPackages/Quantum=
"]
>>
>> After which when I type $Path I do see the path to my AddOn. However,  
>> it still won't load.
>>
>> Thanks,
>> Porscha
>
>
>
>