lightroom 5 won't open on my Mac Sierra

[karad35443789]

I just downloaded Light room 5 and when i click to open the app it flashes the startup window then closes.

[Sahil.Chawla]

Hi karad,

Could you please try resetting the preferences and let us know if it helps:

How to set Lightroom preferences

Regards,

Sahil

[katep39404683]

Hi Sahil,

I can't even reset my preferences, because Lightroom won't open. When I click to open lightroom, the startup window flashes, then a red PDApp thumbnail appears in my toolbar, and then both disappear.

[melv57322554]

I am having the same problem, was there a fix for this?

[melv57322554]

I am having the same problem as listed above, can you help?

[dj_paige]

Please describe the problem in detail. Please be sure to state your operating system version, and the exact version number of Lightroom (I want the number, not words like "up-to-date"). Please state the exact complete unedited word-for-word error message.

[melv57322554]

I attempted to reset the preferences, but because Lightroom won't open i can't.   When I click to open lightroom, the startup window flashes, then a red PDApp thumbnail appears in my toolbar, and then both disappear.

i have an operating system on the Mac 10.2.6 and light room 5.

[dj_paige]

Is that a typographical error? Please confirm your operating system is (or is not) 10.2.6.

[melv57322554]

yes, macOS 10.12.6 - the latest version of Sierra. Now that we are all on the same page, does Adobe support have any solutions on the issue?

[John Waller]

melv57322554  wrote

i have an operating system on the Mac 10.2.6 and light room 5.

I assume you mean macOS 10.12.6 - the latest version of Sierra.

[melv57322554]

yes. any help?

[John Waller · Accepted solution]

Yes, now that we've got accurate details we can start troubleshooting.

Try resetting your preferences.

https://www.lightroomqueen.com/articles-page/how-do-i-reset-lightrooms-preferences/

[aarons1337]

same issue.

OS X 10.12.6

Fresh download and install of Lightroom 5.7.1 [994773]

Deleted all preference files for all Lightroom versions.

Issue persists

[dj_paige]

Details?

How far do you get in the process of opening Lightroom?

Do you get any error messages? If so, please quote the exact complete unedited word-for-word error message.

[hlabonephoto]

I am getting same thing. Downloaded, installed. Start up for lightroom shows up, then the red adobe box at bottom and then nothing. No error messages, nothing. Just doesn't do anything at all.

[dj_paige]

Details?

What is the version NUMBER of your Lightroom? (We need the version NUMBER and not words like "up-to-date").

What is the version NUMBER of your operating system? (We need the version NUMBER and not words like "up-to-date").

[hlabonephoto]

I’m not sure actually. I just clicked the download link

On the adobe website for Lightroom 5

Sent from my iPhone

[dj_paige]

What is the version NUMBER of your operating system? (We need the version NUMBER and not words like "up-to-date").

[hlabonephoto]

Mac 10.13.6

Sent from my iPhone

[dj_paige]

LIghtroom 5 has known issues running on High Sierra. You need to either upgrade your Lightroom to Lightroom 6 or LIghtroom Classic CC, or downgrade your operating system to Sierra.