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At the risk of a 'me too,' I regret it's broken here too on two Macs, duly licensed. Tried the solutions listed elsewhere for licensing failures, but nada. This is a new snafu. Thanks a lot Adobe! The fix had better be simple and none of that 'uninstall' and re-install nonsense. If it is, I suggest sending an invoice to Adobe for our time. I appreciate the efforts to keep software ticking, but these kinds of disruptions are totally unwelcome and huge time-suckers, and costly.

10.6.4 with latest Apple Graphics Update from this week, Acrobat 8 Std, Mac Mini (mid 2010).  Same issue, same error message about starting another CS3 app first. Does not work although it seems it hasn't affected CS3 itself.

Hi everybody,

I was able to come up with a fix, although it may not help everybody. I used Time Machine and went back today to before the update and replaced the 8.2.4 version of Acrobat with the 8.2.3 version. Like I said, probably won't help everyone, but if you are using Time Machine, it works!

I've go the same problem too. Once I updated, it could not work. I tried something that was suggested for the same error message but with earlier versions of Acrobat. I moved folders 'Acrobat', 'Acrobat PCD' and 'Acrobat PDF'  from Library/Application Support/Adobe to my desktop and launched Acrobat again. This time, it asked me to re-enter my serial number but strangely, it REJECTED my serial number....

Adobe, you've created this problem, I hope you fix it ASAP...this is seriously hampering my capacity to work!!!!

Hello there,

Adobe is aware of this issue working on a solution. I'll update this thread as soon as I know what this solution is.

At the moment the only solution is to go back to 8.2.3.

Furthermore I'd like to apologise for this mishap. It should not have happened.

If you have paid to get support for this issue please contact Customer Services to get a refund.

Hi same problem here

overcome by show package contents on app then  copying the Frameworks,MacOS and Resources folders from back up or another copy (not upgraded) and trashing all acrobat plist also did - com.adobe.CSXSPreferences.plist

I did it this way as i have a lot of plugs for our workflow.

Hope it works for everybody else

Same issue here. Have tried the old method of moving the Acrobat, Adobe PCD and Adobe PDF folders, but Acrobat won't take the CS3 serial number, so we're pretty much stuffed until a proper fix is in place.

I thought I have been able to repair my installation after my earlier post.  But it involved an uninstall of Acrobat 8 and reinstall.  I initially tried using Adobe Updater to update but ran into a problem updating to 8.1.3.  So I downloaded all the update patches from Adobe's downloads/update page and applied them manually.  Takes some time doing them one at a time but I successfully updated Acrobat to 8.2.4 and it launched correctly.  (EDITED)

Oh boy, spoke too soon.  Acrobat 8 launches ok but will only keep a PDF open for a very few seconds before the error message

     "Adobe Acrobat 8 Professional cannot be launched at this time. You must launch at least one other suite component (such as Adobe Photoshop) before launching Acrobat 8 Professional."

I of course tried this but still cannot make Acrobat stay open.  If I don't open a PDF and keep Acrobat running, it'll stay running.  Open a PDF by either File>Open menu or by double-clicking will open the PDF, keep it open for few seconds, show the above error and shut down when I click OK.

Same problem here.  Normally I wait to do updates until other people have been the guinea pigs for the latest updates, but this one was identified as a security update so I figured I best update.

Clearly that was a mistake.

Security update or not, I'll have to stick with my normal update hesitance in the future.

This is really a pain...

We're all in the same boat -- I'm not certain if this is an exploit / hack or administrative error, but my license number for the Acrobat 8.2.4 is not mine -- someone else's. The company name reads "Mac Vegas"  -- anyone else able to check their Acrobat License and confirm that it's the same company or another altogether?

Same problem. Running intel G4 os 10.8.4 but with a split package of CS3 and CS4 (pshop, ai, dreamweaver & flash being CS4).

Same issue here, won't launch after update. Running Mac OS 10.5.8 on MacPro. My copy also reads Mac Vegas.

"Mac Vegas" here too.

Unlike the others, I'm still on 10.4.11.

Same problem on multiple Mac OS versions.  Successfully dragged Acrobat application (only) from clone with version 8.1.5 installed, launched Acrobat without problems.  Didn't remove any prefs or alter any other installations files.  So, if you have a clone or backup of a previous version, simply delete the 8.2.4 Acrobat folder from your applications and copy in the backup and launch.

Ditto. Same update, same error message, and a job that needs proofing before Monday... OS X 10.6.4.

Excellent !!  The "Mac Vegas" thing has been going on (off and on) through multiple versions for years.  This is why I turn off Adobe auto-update on all of my client's stations.  I've seen this kind of stuff many times before.

Me too! Hurry up and fix it Acrobat!!

Hi All,

In reference to the Mac Vegas thing, I am pretty sure that is just the developer group name. It has been on the suite products for some time, since CS2 I'm pretty sure. Again, if you have a backup of the previous Acrobat, try replacing the updated one. I think you can also, as someone suggested earlier, just re-install Acrobat from your Suite discs. Certainly worth a try.

Good luck!

When I last checked the updater was still available for manual download (although I'm not sure about the a

utomatic download).  Can't Adobe at least spare some folks the hell we are going through?

I too have fallen into this group of non working Acrobat. I now cannot work, thanks ADOBE! I ususally don't update my acrobat since I really only use it to read files and there's nothing really "new" ever in those updates. Anyhoo, will I get an email when the Adobe employee finds a solution? I do not have the time to go back and fiind older updates or reinstall software.

Now when I look at the download page, it says the 8.2.4 upgrade is only for Mac OS X v10.4.11 - 10.5.5. (see http://www.adobe.com/support/downloads/detail.jsp?ftpID=4767)

I'm running 10.5.8, but yet autoupdate kicked in and told me I needed to install it. Is that part of the problem? We were hoodwinked into installing an unsuitable upgrade for our system software?

Adobe KB Document: http://kb2.adobe.com/cps/861/cpsid_86169.html

Issue

Macintosh Adobe Acrobat 8.2.4 is unable to launch after applying the Acrobat 8.2.4 Update from the auto-update mechanism.

This issue appears only to impact the version of  Macintosh Acrobat 8.2.4 that is included with the Creative Suite 3.

Solution

Adobe is currently working on a comprehensive solution for Macintosh Acrobat 8.2.4 but in the meantime has take steps to ensure that more users are not impacted.

As a pro-active step Adobe has done reversal of Mac 8.x manifest and rolled it back to 8.2.3 level. So Acrobat will not update to 8.2.4 automatically now it will go upto 8.2.3 only. Unfortunately this means that the  Mac Reader 8 will also not update to 8.2.4.

If you have already installed the Acrobat 8.2.4 Update and are experiencing the launch issue.  Adobe is recommending that  a reinstall Acrobat 8 from CS3 installation media (this will install 8.0.0), and then check for updates; it will take the installation up to Acrobat 8.2.3 (in a few steps).

Additional information

If you have Adobe Acrobat 8.x installed that is not part of a Creative Suite 3 installation you can manually update your application via the Downloads Acrobat for Macintosh page.

If you have Adobe Reader 8.x installed you can manually update update your application via the Downloads Adobe Reader for Macintosh page.

I appreciate that Adobe is working on a solution (which I suspect will contain some variation of uninstall and re-install), but that does not lessen the impact this is having now. The least Adobe could do is package all those incremental updates into a single zip so that one download gets them all, or better yet, a single update file to take an installation from its original version to the current.

Needless to say I am waiting until this truly is FIXED before I attempt to reinstall. I'm a slightly more casual user, but my sympathies go out to those who are trying to get their work done.