My lightroom 4 will not open

My lightroom 4 will not open. It says being used by another application. how do i access files to unlock, If that is the problem?

With Lightroom closed:
Find the folder where your catalog is located.
Look for a file with the name yourcatalogname.lrcat.lock
Rename, Move or delete this file.
Open Lightroom

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I'm not a "Cloud" member. I just upgraded to Lightroom 6 from Lightroom 5. All was working well yesterday. Today Lightroom will not open (Windows 7). I see the logo photo over my Lightroom platform but nothing loads and I see "Lightroom not responding

I'm not a "Cloud" member. I just upgraded to Lightroom 6 from Lightroom 5. All was working well yesterday. Today Lightroom will not open (Windows 7). I see the logo photo over my Lightroom platform but nothing loads and I see "Lightroom not responding." I checked the catalogs and see that lrcat-Journal and lrcat-Lock have been created every time I try to open. I have a backup from the first day I upgraded, but Lightroom doesn't want to access it. Should I reinstall?

Well, is the catalogue (and the folder it is in) writable? Have you actually checked the permissions? Lightroom won't be spitting out the error just to tick you off, and - computer wizard or not - this sounds very much like something you'll have to fix at the OS level: it's probably nothing to do with Lightroom or those funny lads at Adobe.
Some light reading for you, courtesy of the site search: https://forums.adobe.com/search.jspa?q=%22+not+writable+and+cannot+be+opened%22&place=%2Fp laces%2F1383621&depth=ALL
It would help to know your OS.

I just purchased and installed CC "photography" and lightroom will not open D750 files.

It says that all updates have been done and are current. I have LR4 installed, do I need to uninstall it?
For what it is worth, PS will not open them either...
I installed CameraRaw 9.0 as an option, but that does not seem to have done the trick either?
Not super happy with the CC for the first try, very unimpressive.
C

carsonj14689938 wrote:
I installed CameraRaw 9.0 as an option, but that does not seem to have done the trick either?
Just for information - ACR has no relevance whatsoever on whether Lr will open a file.
The D750 has been supported since November 2014 (Lr 5.7) so you're either using an older version of Lr, or - depending on what actually happens when Lr "doesn't work" - this might be (as Steve mentions above) down to something like the files having been touched by Nikon software on import (which does something to the file headers that renders them unreadable by Lr); or a problem with the Write permissions on your machine.
So - some actual details of what you're seeing would be helpful, along with your OS.

Lightroom will not open in Photoshop.

When I try to open images in Photoshop from LR i get this message, "Lightroom was unable to prepare the selected file at C:\ .....NEF for editing it will not be opened".
Please help.

Yes, the RAW files don't offer the chance to open the original. It makes sense as it would have to open them in Adobe Raw first anyway.
So, it seems that both Vista and XP have this problem. And yet it puzzles me (and I'm sure tech support) that so few of us are having this issue. My setup is a brand new HP laptop so I don't think it's a configuration problem.
I mentioned above that I read the Beta had this issue with some folks. Clearly Adobe are not getting to the bottom of it all yet. Let's look forward to their patches which, no doubt, will be posted soon.
It's a shame because I love this software.

Lightroom will not open up.

I just got the LightRoom program direct from Adobe. (I live in Beijing, China so it is difficult to get help in English on the internet.) Anyways I can't seem to open up the program. It says it has been downloaded and when I click on the icon I just get the same window which has the 3 folders Sample,Documents, and Customer Support. along with Adobe Reader 8., Lightroom Read me, and the Adobe Photoshop Lightroom .pkg which I assume should open the program if I click onto it. I took it to a local Apple Affiliate store and they couldn't figure out what was going on as well. because I am using the latest ProBook Mac lab top. I have a 2 gig memory. I only have 5 gigs of working space though on my hard drive. Could this be the problem.? What a nightmare if I have to send this back to Adobe................
Please help I want to use the program......
Thanks, Wesley Wong

Make that Trial Copy. Any copy is a trial copy with out a serial number. No special versions here.
Don
Don Ricklin, MacBook 1.83Ghz Duo 2 Core running 10.4.9 & Win XP, Pentax *ist D
http://donricklin.blogspot.com/

Lightroom will not open, says it is open in another catalogue

How do I fix this error notice when I try to open Lightroom, it says it cannot open because it is open in another catalogue, I don't have another catalogue.

Using your system browser, open the folder containing your catalog. You should find a file with the .lock Extension. It should have the same filename as the catalog. You need to delete that lock file. Sometimes if Lightroom doesn't shut down exactly right that file gets left behind. It's a file that is used by the catalog, but is deleted whenever Lightroom closes.

Lightroom will not open

My retail copy of LR 4 which I've using since 4/12 won't open. The msg
"This Beta version has expired. The app will now quit" appears.

You were using the 4.1 release candidate, by the sounds of it.
Just download the 4.1 final version and you should be all set.
Windows
Macintosh

I am trying to import developed images from LightRoom 5 in o Photoshop 6. I am receiving this message and the images will not open.....'Could not open scratch file because the file is locked, you do not have necessary access permissions or another progra

I am trying to import developed images from LightRoom 5 Photoshop 6 for further editing. I am receiving this message and the images will not open.....'Could not open scratch file because the file is locked, or you do not have necessary access permissions or another program is using the file. Use the 'Properties' command in the Windows Explorer to unlock the file. How do I fix this? I would greatly appreciate it if you would respond with terms and procedures that a computer ignorant user, such as me, will understand. Thanks.

Have you tried restoring the Preferences yet?

I am trying to import developed images from LightRoom 5 into Photoshop 6. I am receiving this message and the images will not open.....'Could not open scratch file because the file is locked, you do not have necessary access permissions or another progra

I am trying to import developed images from LightRoom 5 into Photoshop 6. I am receiving this message and the images will not open.....'Could not open scratch file because the file is locked, you do not have necessary access permissions or another program is using the file. Use the 'properties' command in the Windows Explorer to unlock the file'. This has not happened before. How do I change this?

Could not open a scratch file because the file is locked or you do not have the necessary access privileges. (…) | Mylen…
Mylenium

I have a CC Photography License and tried loading the new Lightroom cc but it will not open (only flashes the welcome screen for a split second) then goes blank. I tried uninstalling it, rebooting, etc. several times and it will not work on my Mac with Y

I have a CC Photography License and tried loading the new Lightroom cc but it will not open (only flashes the welcome screen for a split second) then goes blank. I tried uninstalling it, rebooting, etc. several times and it will not work on my Mac with Yosemite. Please help!

Check out this thread: Downloaded Lightroom CC but only get a quick flash of the startup screen then nothing, Lightroom 5 still working.

HELP! Lightroom CC file will not open "edit in" Photoshop CC after upgrade

help! I use Lightroom CC and Photoshop CC and I used to be able to "EDIT IN" and choose Photoshop which would then open up the image in Photoshop. Just updated last night (auto via CC) now it will NOT open in Photoshop...any suggestions! thank you!

Are you using Photoshop CC or Photoshop CC 2014?

Lightroom 5 will not open and gives me a message saying it encountered an error reading from its preview cache. [was: Lightroom 5 question]

@Lightroom 5 will not open and gives me a message saying it encountered an error reading from its preview cache.

This is the Photoshop forum however.
Close Lightroom and go to your Lightroom catalog folder.
The default location is usually in Pictures.
Delete the file in the catalog folder which ends Previews.lrdata
Do not touch the catalog itself which ends.lrcat
Then try re-launching Lightroom.

I have a question about Lightroom 5... I used it last night, I go to get on it today and its will not open. I have an error msg "Lightroom encountered an error when reading from its preview cache and needs to quit" Lightroom will attempt to fix the proble

I have a question about Lightroom 5... I used it last night, I go to get on it today and its will not open. I have an error msg "Lightroom encountered an error when reading from its preview cache and needs to quit" Lightroom will attempt to fix the problem when reopened

https://forums.adobe.com/message/6219922#6219922
See if the issue in the thread above helps you to solve your problem.

Dowloaded Lightroom 3. Now Photoshop CS4 will not open??

Please help. Can anyone explain why my photoshop program will not open.. I use Photoshop Bridge then double click on an image and Photoshop opens.
After I downloaded Lightroom 3 which I purchased through an on-line re-seller, I selected some images and imported them into Lightroom.
I do not understand why Photoshop CS4 does not open.
can anyone advise me.

What kind of files anyway?
What is the format’s »File Type Association« (check under Adobe Bridge CS4 > Prefernces)?

Raw files from the new Nikon D810 will not open with either Photoshop CS5.1 or Lightroom 4. When will a real Adobe solution be available to work with Raw (NEF) files in their native format, using CS5.1 and LR4?

Raw files from the new Nikon D810 will not open with either Photoshop CS5.1 or Lightroom 4. When will a real Adobe solution be available to work with Raw (NEF) files in their native format, using CS5.1 and LR4?

Clarification: this is a user forum; you are not addressing Adobe here.
The answer to your question as phrased is: never.
CS5 is history and it is not longer supported. There will not be any updates or bug fixes for CS5.
You need to convert the raw NEF files from your D810 to raw DNGs using the free, standalone Adobe DNG Converter 8.6 RC (beta), the first version ever to support that camera..

Lightroom 5.5 files will not open in Photoshop 2014

Hi. Just updated Lightroom to 5.5, and Photoshop to CC 2014, using the CC updater. Now, when in Lightroom, Command E, or the menu selection, will not open my files in Photoshop. Any ideas?

ssprengel Your suggestion about uninstalling and re-installing worked for me . Thank you.

My lightroom 4 will not open

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