Lightroom Quit Unexpectedly on macOS High Sierra

PROBLEM SOLVED!

I just purchased the Lightroom 6 CD-ROM and had this same problem: Install seemed to go well but when opening it was an error window that said "Lightroom Closed Unexpectedly."  Looked for online help and came across this forum and could make no sense of half of these suggestions so I got into an online with Adobe support from their web page.  I did have to wait ~20-minutes before an online chat started but it was worth it.

My chat Technician confirmed my problem then openly stated that Lightroom 6 crashes in Mac High Sierra.  After confirming my product serial number, he then sent me a link to download Lightroom 6.14 which is a fix for the crash problem.  I did NOT uninstall Lightroom 6.  I downloaded it to my computer, ran the install program and opened Lightroom 6.

What I was most impressed with is that he stayed live with me on the chat while I downloaded the program from the link, installed the program and confirmed that Lightroom would open.

You can find the link to Lightroom 6.14 by doing an internet search.  This appears to only be for Lightroom 6 and not for Lightroom CC.

Well, I would suggest you to give a try for an update, download the update manually from below link :

Download Photoshop Lightroom

Run the update and then try to launch Lightroom.

THANK YOU!!!

Here is my experience with this problem:

I installed the 6.11 version (the one suggested by defect), then I did all what JoeBro suggested and still didn't t work. After several hours of frustration (we all know how bad it feels), I finally updated the non-working version to the 6.14 and finally it did work. If you install the one they give you by defect, its 6.11 and would not work (at least in my Mac)

Regards and thanks to all for your help

Finally I got LR to load. I uninstalled LR (and deleted all the Adobe files left over after the uninstall in Users, Applications and Applications Support folders). I restarted my iMac. Then, I downloaded LR 6 from Adobe Support page ( Download Photoshop Lightroom​​ ) and  installed the downloaded software (by clicking on the downloaded file, Lightroom_6_LS11.dmg). Then I applied all the permissions changes advised by JoeBro (thanks for this helpful advice - better than anything I got from Adobe!) and started up LR - to my surprise it loaded ok, so I then selected the update option under the LR Help menu which showed Adobe Application Manager and LR needed to be updated (LR was said to need version 6.14 update). I selected both the updates which ran ok.

LR was reloaded after the update without any problem.

Of course time will tell if this is a permanent solution, as I did manage to load LR previously but it failed quickly after I selected Develop and then could not be restarted until now!

Just in time for Xmas.

I've got this same problem (also posted in another thread om crashes with High Sierra). I jpurchased LR via Amazon yesterday. Downloaded LR initially from the supplier (Amazon) but it failed in the way you mentioned. After the first time LR failed, I checked the forum and followed advice to remove the SL store and SL cache files. Initially this worked and LR loaded ok and I was able to do a test load of some tif files. However, when I selected the Development tab, LR crashed. I have been unable to get it to load since then!

I uninstalled and re-installed from both my original downloaded LR copy and the latest version on the Adobe support web site - in every case LR crashes while loading, even when I set the permissions and removed the SL store and SL cache files as per this thread.

I'm at my wits end as to what to do now - LR has not turned out to be a great xmas present!

I will try that but here's my crash log:

LR launches, I se my gallery and it then crashes.  I have also had problems with copying files and Apple Mail crashing.

Process:               Adobe Lightroom [1463]

Path:                  /Applications/Adobe Lightroom/Adobe Lightroom.app/Contents/MacOS/Adobe Lightroom

Identifier:            Adobe Lightroom

Version:               Adobe Lightroom [1125239] (6.12)

Code Type:             X86-64 (Native)

Parent Process:        ??? [1]

Responsible:           Adobe Lightroom [1463]

User ID:               501

Date/Time:             2017-10-06 16:39:03.400 -0400

OS Version:            Mac OS X 10.13 (17A405)

Report Version:        12

Anonymous UUID:        43C22853-B118-2B42-1F00-C7B0D26093A9

[When a Staff person asks for private information hover your mouse over their name]

[you may then click the Message option in the popup window to send a private email]

[long crash log removed... please only send a crash log to a technician, when asked]

I read on the Internet that the problem may be that Lightroom didn't have the appropiate permissions to launch, so I went to the Applications folder, selected on Lightroom.app and edited the permission to Read & Write for every single account; then, I tried to launch Lightroom, and it worked! The only problem right now is that I can't open Preferences beacuse it crashes every time I try to.

Adobe Lightroom CC (2015) is not the latest version of LR. There are reports that Lightroom CC 2015.12 fixes (some) problems with High Sierra. So you need to update your LR to 2015.12

Hi Joebro,

Sorry for the crash, as you stated that the latest version of Lightroom is crashing on your computer, is it specifically after the update of macOS High Sierra (10.13), or was it also crashing prior to the update of macOS?

Also, did you try the troubleshooting steps for GPU as mentioned by Axel?

Could you please share the crash logs for Lightroom crashing.

Regards

Tanuj