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Lightroom: 4.3 Cannot use Slideshow, get "An error occurred when attempting to change modules"

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Community Beginner ,
Dec 25, 2012 Dec 25, 2012

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Lightroom 4.3 on MacBook Pro Retina + Cinema Display: Cannot use Slideshow, get "An error occurred when attempting to change modules". OS X 10.8.2, 16Gb, 2.7 GHz Intel Core i7. Approximately 30 seconds from installation to finding this bug.
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correct answers 1 Correct answer

Adobe Employee , Apr 03, 2013 Apr 03, 2013
Thanks for reporting this. This issue should be fixed in Lightroom 4.4. Choose Help>Check for Updates... to download and install.

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Community Beginner ,
Dec 25, 2012 Dec 25, 2012

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Workaroud is to first launch lLightroom and then attach secondary monitor.

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Community Beginner ,
Dec 25, 2012 Dec 25, 2012

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Sorry, Alexey, I have seen that suggestion elsewhere and it is not working for me.

I rebooted (without the second monitor), tried Slideshow and it worked. Quit Lightroom, connected the second monitor, launched Lightroom and immediately got the same error (because it was still in Slideshow mode). I also tried making sure that Lightroom was in Library mode before quitting when the secondary display was not hooked up, then starting Lightroom but again, going into Slideshow mode generates the same error.

Adobe QA please note the ease with which this can be reproduced.

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LEGEND ,
Dec 28, 2012 Dec 28, 2012

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Hi,

I am seeing this issue too. Mac Mini with two HP displays. It would be great to get a response that this is known as an issue and is being looked at as a bug. I work with two monitors as my default setup, so the workaround of detaching/reattaching monitors is no good. It (monitor fiddling) is so disruptive that I didn't try it. Probably the best workaround is to roll back from Lightroom 4.3 if that is possible for you. I will try that.

thanks,

Jason MacLeod

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Community Beginner ,
Dec 28, 2012 Dec 28, 2012

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Hi Jason, upvote this bug please - there is a button on original message.

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New Here ,
Dec 29, 2012 Dec 29, 2012

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I got it with the upgrade to LR 4.3. I've cleaned out all parameter files (com.adobe.Lightrrom.plist) etc, deleted the app and all files I found, installing a fresh LR4.3 gives the same error. Downgrading to 4.2 and it all works again.

Creating a new user and then start LR4.3 the slideshow works (?). I've tried to copy all parameter files form the new user to my account but it still doesn't work. Since LR4.3 does work on a fresh account it must be something with a parameter files somewhere. I've three monitors hooked up (the third through a USB-DVI box)

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New Here ,
Jan 01, 2013 Jan 01, 2013

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Since updating to Lightroom 4.3, I cannot access the Slideshow module. Each time I try, I receive the following message:

"An error occurred when attempting to change modules."

I have researched the problem and have followed instructions I've found to resolve the issue including:

replacing the preferences file (com.adobe.Lightroom[VERSION#].plist) and deleting my user created slideshow templates.

The problem still persists.

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New Here ,
Jan 01, 2013 Jan 01, 2013

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Unplug and reattach displays; create new profiles...what the frig???

None of these things work and/or are terribly inconvenient.

This is a real problem~! HELLO...fix this please!

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LEGEND ,
Jan 05, 2013 Jan 05, 2013

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Same problem with two monitors attached. Tried all suggestions and the only solution that worked is disconnecting the 2nd monitor. Not ideal during a busy day!

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Adobe Employee ,
Jan 07, 2013 Jan 07, 2013

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The team is looking into this. Thanks.

Senior Product Manager - Customer Advocacy - Digital Imaging

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Community Beginner ,
Jan 12, 2013 Jan 12, 2013

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Hello, I have the same problem. Everytime I click Slideshow, I get this error message. I have tried this with empty Catalog and it didn't work. So there must be some error in the App itself.

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LEGEND ,
Jan 29, 2013 Jan 29, 2013

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Hi, Had same problem. I couldn't find a fix after a few hrs so deleted Lightroom 4.3 & reinstalled Lightroom 4.2 & I'm back in business again.

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LEGEND ,
Jan 29, 2013 Jan 29, 2013

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OK.... well where can i download lightroom 4.2 to get it working again?!

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Adobe Employee ,
Jan 29, 2013 Jan 29, 2013

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Mac: http://www.adobe.com/support/download...

WIn: http://www.adobe.com/support/download...

Senior Product Manager - Customer Advocacy - Digital Imaging

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LEGEND ,
Feb 06, 2013 Feb 06, 2013

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There's more on this thread in Lightroom's forum:

http://forums.adobe.com/thread/111589...

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New Here ,
Feb 20, 2013 Feb 20, 2013

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what's going on? how long do we need to wait until there is a fix or a work-a-round? Has this even got an official ticket, are Adobe working on this?

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Adobe Community Professional ,
Feb 20, 2013 Feb 20, 2013

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It's marked as In Progress, so yes they're working on it. Hopefully it'll be fixed in 4.4, but you can roll back to 4.2 for now if it's causing a problem in your workflow. Just uninstall 4.3 and install 4.2 again. You'll find the download links by googling "Lightroom 4.2 download".
-------------------------------------
The Lightroom Queen - Author of the Lightroom Missing FAQ & Edit Like a Pro books.

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New Here ,
Feb 26, 2013 Feb 26, 2013

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Need 4.3 for my camera support. I can't see anything about this in the 4.4 release note 😞

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Adobe Employee ,
Feb 26, 2013 Feb 26, 2013

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This should be fixed in 4.4.

Senior Product Manager - Customer Advocacy - Digital Imaging

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LEGEND ,
Mar 09, 2013 Mar 09, 2013

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The slideshow module in LR 4.3 doesn ́t work.
When I click on "slideshow" or "book" there is a dialog window telling me, that there is an error at trying to switch between the modules. Ok button, nothing else happens, grey instead of the module.

I ́m using LR 4.3 on Mac OS 10.8.2

I tried the last Version of LR, but there ́s everything ok.
A reinstall of LR 4.3 doesn ́t help.

Please help/ fix this problem.

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LEGEND ,
Mar 10, 2013 Mar 10, 2013

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I installed Lightroom 4.4 RC. The Problem is still there. Nothing is fixed.

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New Here ,
Mar 23, 2013 Mar 23, 2013

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I gave up, I made a complete re-build of 10.8 and did a fresh install of LR4.4 and now it works.

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LEGEND ,
Mar 28, 2013 Mar 28, 2013

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Worked for me, thanks. But this is really annoying... 🙂

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New Here ,
Apr 03, 2013 Apr 03, 2013

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I was very nervous upgrading to 4.4 now when I finally got 4.3 working (rebuild OSX 10.8). All in - and it works even after upgrading to 4.4 🙂

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Adobe Employee ,
Apr 03, 2013 Apr 03, 2013

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Thanks for reporting this. This issue should be fixed in Lightroom 4.4. Choose Help>Check for Updates... to download and install.

Senior Product Manager - Customer Advocacy - Digital Imaging

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Explorer ,
Apr 04, 2013 Apr 04, 2013

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hah .... upgraded to 4.4 .... slideshow works but only on 2nd monitor (which is not my primary monitor

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