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Re: Suggestions Bar Hanging

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  • Subject: [mg131532] Re: Suggestions Bar Hanging
  • From: Helen Read <readhpr at>
  • Date: Wed, 21 Aug 2013 01:57:55 -0400 (EDT)
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We did some further investigation and found the source of the problem. 
There was a file in AppData\Roaming\Mathematica\Paclets\Configuration 
that contained absolute path references to files in the profile of the 
account that was used to create the Default user profile, which of 
course is not accessible to regular users. Deleting the file with those 
path references fixed the issue, without affecting any of the 
preferences we set. John Fultz responded to me privately, and when I 
told him of our new findings about the specific file that was causing 
the issue with path references, he advised that we delete the entire 
AppData\Roaming\Mathematica\Paclets directory from our Default profile 
to avoid the potential for the same thing happening again in other 
file(s). He said they should be able to fix this issue at Wolfram's end 
in a future release, but in the meantime simply deleting that directory 
from the Default user profile will work.

All is well.

Helen Read

On 8/20/2013 8:07 PM, Itai Seggev wrote:
> On Sat, Aug 17, 2013 at 02:06:23AM -0400, Helen Read wrote:
> [snip]
> Hi Helen.
> I'm very sorry to hear about your troubles, and I hope tech support can give
> you a more definitive answer than I can, but here are a few hints I can
> provide:
>> Questions
>> 1. Has anyone else had this issue with the Suggestions Bar hanging (and
>> causing the Kernel to hang along with it)?
> I have not encountered anything like this, but symptons strike me as network
> related.  Is $UserBaseDirectory on a network drive?  If so, is it writable and
> is it properly mapped to a local drive letter?  This would be the first things
> I'd check.  Also, are you using data paclets?  They need to write relatively
> large caches, although I'm not sure why this would manifest as a suggestion bar
> issue.
>> 2. Any way to fix?
> Obviously, you can just disable the suggestions bar in the preferences; that's
> on the drastic side and since thsese are lab machines probably not what you
> want.
> Another possibility I have done in the past is to put the preferences I needed
> in $InstallationDirectory/Configuration (officially, deprecated, but it still
> works and is useful when there is a single application server) or in
> $BaseDirectory instead of $UserBaseDirectory.  Since these sound like startup
> settings, this should work for you.
> A third possibility, useful if this is network issue, is to have a script
> create new, prisitine preference file on local drive, and then set the
> environment variable MATHEMATICA_HOME to point it.  Obviously has the downside
> that individual student preferences will not be saved from one login to the
> next.
> Good luck.
> --
> Itai Seggev
> Mathematica Algorithms R&D
> 217-398-0700

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