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Unzip file stops working when zip it again


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DistillingATutor
Subject: Unzip file stops working when zip it againQuote this post in your reply
Do you know what could be the problem of a zipped file from ATutor Demo, which I just unzipped and then zipped again, with no modification and it doesn't run, but rather do a download of the file?
Posted: 2013-07-31 05:43:27
DistillingATutor
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Sorry, I should have said I am using the compressor embedded in Windows 7 in order to generate the zip file. Any thoughts?
Posted: 2013-07-31 06:25:06
greg

Avatar for greg
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Its not uncommon for zip files created on windows systems to not work. Hard to say why. It might be a question for Microsoft.
Posted: 2013-07-31 10:54:29
DistillingATutor
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Agree. Would that be possible to zip a file offline in the same way ATutor does it? Just to make sure I am talking about a SCORM file that was unzipped and then zipped and it's not running, but only asking for download from the Browser. It is not any zip, it is one generated by the ATutor Demo, that used to work. Only the fact of unzip and zip damaged the process. It is really blocking a project in my company. If you think there is any additional information I can provide, I would be more than happy to send to you. Thanks.
Posted: 2013-07-31 12:25:11
greg

Avatar for greg
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
The SCORM module is not installed in the demo server, so I'm a little confused.

If you exported from the demo, you would have exported a common cartridge or a content package. They don't "run" so to speak.

Another thing that breaks zip files are content that has been copied and pasted from Word. Word inserts its own invisible characters that don't zip correctly. You can try zipping individual pages until you find the one that breaks. It may be possible many are broken. The content there is from a third party.
Posted: 2013-07-31 12:44:56
DistillingATutor
ATutor.zip
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
I have the two attached files (inside ATutor.zip), that I would be grateful if you could test them to verify if they are SCORM-compliant. I have tested them using scorm.com and Reload SCORM Player. Both were SCORM-compliant in the the website, but also both presented error of "cannot find the declaration of element 'manifest'" in the Reload tool.

The file ATutorSpaces_Demo_Course_ims.zip, which I believe was generated from the Demo from Atutor website, runs in a Sharepoint application we have, which is a SCORM 1.2 compliant, thus, no need to go into Sharepoint details here. However, this same file, if we unzip and zip again and try to run on this Sharepoint application, the browser pops up a windows for download the file. The file test.zip shows the same problems regardless of unzip or not. This test.zip file was generated by our instance of ATutor.

Any thoughts?
Posted: 2013-08-01 05:22:34
greg

Avatar for greg
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
With out getting into the details, what you export from ATutor is an IMS content package, which SCORM happens to use as its base for packaging.

As for the zip issue, it may be related to the php version, and particularly the version of zlib installed with php.
Posted: 2013-08-01 08:32:41
greg

Avatar for greg
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Some of these details could help with identifying the problem.

Things to describe:
Operating system ATutor is installed on -
ATutor version -
Patch #s applied -
ATutor theme name -
PHP version -
MySQL version -
Webserver & version -
Copies of error messages -
Changes to default settings -
Web browser being used -
...and anything else relevant -
Posted: 2013-08-01 08:38:15
DistillingATutor
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Thanks. These are the details I have:

Things to describe:
Operating system ATutor is installed on - SUSE Linux Enterprise Server SP2 3.0.74-0.6.8-default
ATutor version - 1.6.3
Patch #s applied -
ATutor theme name -
PHP version - php5
MySQL version - 5.6.12

Installed in Linux, but I am using the file in a Windows 7 machine.
Posted: 2013-08-01 09:13:47
DistillingATutor
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Sorry, I think I didn't understand well. Did you mention that the files I sent are not SCORM? How to generate a SCORM file then from ATutor? I mean, I have my course content and would like to export as SCORM-compliant. Thanks.
Posted: 2013-08-01 09:19:23
greg

Avatar for greg
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
First your version of ATutor is very old, and unsupported. You should upgrade. The age of your ATutor installation could be the problem.

ATutor does not generate SCORM packages. It generates IMS Content Packages (and IMS Common Cartridges), which just happen to work with SCORM players. SCORM is based on IMS specifications.

The exact php version number would be more helpful.

That said, you'll need to upgrade before we continue tracking down the problem.
Posted: 2013-08-01 10:04:29
DistillingATutor
Subject: Re: Unzip file stops working when zip it againQuote this post in your reply
Ok, we are in the process to upgrade ATutor. Thanks.
Posted: 2013-08-01 12:14:44
 
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