Lightroom won't open! :(

I have used up the 30 days of the trial, but I have a serial number. I put in the number, get a green checkmark, then click next or finish (both do the same) and it closes everything and nothing else happens. I tried restarting the computer, trying to access it from the admin login, making sure the other login had permissions, and updating my computer. Any thoughts?

What operating system are you using?
Hal

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Lightroom won't open on my mac

I am attempting to activate Lightroom on a mac. I've used it on this computer in the past and it suddenly stopped working. I deleted the file and installed the product again. The installation went through, but Lightroom won't open. I tried deactivating the product before deleting, but there was no option. What am I missing?

What happens when you try to open Lightroom?
What is the error message?
What version of Lightroom?
What operating system?

Lightroom won't open, says it's open in another application?Lightroom won't open, says it's open in another application?

Lightroom won't open, says it's open in another application..

Depending on your operating system, use Windows Explorer or Finder to open the folder containing your catalog. In that folder you will find a file with the same name as your catalog, but with the .lock extension. That file needs to be deleted, and then you will be able to start Lightroom.

Loaded 5.7.1 now Lightroom won't open

loaded Lightroom 5.7.1 now Lightroom won't open?

I just upgraded to 5.7.1 and get the same on OS X 10.10.1. The messages is
Adobe Photoshop Lightroom 5 cannot be opened because of a problem.
I tried deleting Lightroom and reinstalling, just the same.
I tried deleting the preference file in $HOME/Library/Preferences/com.adobe.Lightroom5.plist
again crashes just the same, and Lightroom crashes before recreating the file.
Tried a reboot. No joy.

Just installed Lightroom 4.4 and now Lightroom won't open.

I have been working with Lr 4.3 and just upgraded to 4.4. Now Lr won't open when I click on the icon. How do I fix this?

I have copied this from another post I made in the forum see if helps you.
When Lightroom is open it creates a file with the same name as the catalog with an extension .lock (LOCK) alongside the catalog file.
This lock file prevents any other access to the catalog.
If Lightroom is closed normally the .lock file is automatically deleted. However if Lightroom closes unexpectedly e.g. loss of power, crash then the file may remain in place preventing Lightroom from opening the catalog.
With Lightroom closed go to the folder where your Catalog files reside, by default this is in your User > My Pictures> Lightroom. If there is a .lock file present delete the file (do not delete the .lrcat file. See the screen capture.
If you have found a .lock file and deleted it, then double click on the actual Catalog file and see if it opens Lightroom.

Lightroom Won't Open - Activation Just Loops

Would greatly appreciate some expert help with this. I've tried to use Adobe Chat, but have been kept waiting for hours without any response.
I purchased the boxed version of Lightroom 3 from Adobe some years back, installed it on my iMac. It was working at one time, though I did not use it much. (I also purchased CS5.5 creative suite, parts of which I use all the time.)
Recently I tried to open Lightroom 3 but the program wouldn't open. It asked me for my serial number. So, I entered it and filled out the registration (again), and tried to open the program. Clicking on the icon only brought up the window asking if I want to buy the program or else enter the serial number. So I repeated the process. Same result. Click on the Lightroom icon and the same window pops up, asking for the serial number.
I can't get past this loop.
Can anyone tell me what steps to follow in order to get Lightroom working again?
Thanks in advance for your help.
-Rod
[email protected]

If no one suggests anything better, or the problem clears up, my best suggestion would be uninstall and reinstall. This should be a fairly quick operation, and it won't affect your catalogue.

Lightroom won't open TIFF or JPEG files to CS5

Recently upgraded to a new iMac. This morning when I tried to open a TIFF file from Lightroom 3.4.1 into Photoshop CS5 I got a message saying: Lightroom was unable to prepare the selected file at /Volumes/Drobo1/Photos/2011/02-14-2011 Yellowstone/Yellowstone-0641-Edit.tif for editing.
It will not be opened.
The only way Lightroom will open a TIFF or JPEG image to CS5 is if I tell it to open a copy of the image with Lightroom Adjustments. If I say I want to edit the original or a copy, it won't do it.
If I go into CS5 and open the TIFF there, it works fine, so the problem doesn't seem to be with CS5.
Lightroom WILL open RAW files into CS5 without any error message.
I'm using Snow Leopard 10.6.8, which was upgraded yesterday and am wondering if that's the problem since I could open TIFFs on the new computer before.
Phil

Do you have full permissions to the DROBO folder the files are in? I'm a Windows person so I can't tell you how to check this, but upgrading a OS and then things not working might be related to permissions where the files were created with a profile on the previous OS.

Lightroom won't open an image in Photoshop CS2

I have Photoshop 1.1 on a PC running Windows XP. I can't open a Lightroom image in Photoshop CS2 through the "photo" menu because the menu selection to open an image in Photoshop is dimmed. Also in "Preferences" in the "external editors" tab it says "Photoshop not found." My Photoshop is on the same drive as Lightroom. Am I wrong in assuming LR should open an image in CS2?
In a related matter I opened a Photoshop customer support case about this, but did not receive a reply. Is this typical of Adobe? Isn't this the kind of question they should answer even without a paid support plan?

Richard,
What I did when faced with a similar situation was to go to Control Panel, and select Add or Remove Programs, then select Uninstall or Change for Adobe Photoshop CS2, then when prompted whether to Uninstall or Repair, choose Repair. This will fixup all the registry entries that appare to be missing from your system.
Works for me at least.
Steve

Lightroom won't open - I get an error message....is open in another application.....It isn't and I can't progress from there. It allows me to open a different catalogue such as April 2015 but that has only 2 photo's in it ? Any suggestions ?

Can anyone help ?

1. Open Windows Explorer (Windows) or Finder (Mac).
2. Open the folder that contains your Lightroom catalog.
3. In that folder, look for a file with the .lock extension. If your catalog is named Lightroom 5 catalog.lrcat then the file will be named Lightroom 5 catalog.lock.
4. If you find such a file, highlight the file and delete it. You do that by pressing the delete key.
5. Close Windows Explorer or Finder.
6. Start Lightroom as you normally would.
In case you don't know where your catalog is located, if you are using Windows it will be located in Pictures\Lightroom. I'm not sure what the path is for the Mac.

Lightroom won't open catalog

Hello all:
Please help. New to this forum. Using Lightroom 2.2 on Mac.
I had to do a restart after a freeze and then I got the message:
The lightroom catalog named Lightroom 2 Catalog can not be opened because another application already has it opened. Quit the other copy of Lightroom before trying to launch.
I can open my first Catalog but not the Catalog in question (that I had just loaded with several hundred images). I reloaded lightroom program and reinstalled (Catalog.Ircat and Catalog Previews. irdata) from my backup drive. I do have the images backed up on my backup drive but not in my Catalog.
Any suggestions as to how I can reopen the Catalog or is it fried?
Thanks
George

Hello again:
Further note:
I am able to work using the Catalog in question on my backup drive but when I attempt to
work on my computer (main drive) after I reloaded ircat and irdata I get the "catalog can not be opened" message.
Am I going to have to create a new catalog and reload all the images so I can use them on
my computer and not have to access the backup for same???
Any ideas, help, suggestions??
George

Lightroom won't open/launch

When I try to launch lightroom 4.3, I get an error saying, "the lightroom catalog named lightroom 4 catalog cannot be opened because another application already has it open. Quit the other copy of lightroom before trying to launch." I've opened task manager and lightroom is not running, but I keep getting this error message. Please help!

Use your operating system to search for files ending with *.LRCAT, that is the catalog file; delete the .lock file in whatever folder it is in

Lightroom won't open properly

Hello,
I bought Lightroom yesterday, and I am having problems opening it. I type in all my info and press finish on the "Licsence or Try" pannel.
Then Lightroom popes up an error saying, "An error occurred when attempting to change modules." I have no clue why.
It then opens and it is completely blank. It displays the top and bottom pannels but everything else is blank, (grey) as if there's a missing file.
I think I downloaded everything prperly.
Could I please have some Help!
Thanks in advance.

http://forums.adobe.com/community/search.jspa?peopleEnabled=true&userID=&spotlight=false&c ontainerType=14&container=3316&rankBy=date&q=%22An+error+occurred+when+attempting+to+chang e+modules%22

Lightroom Won't open after repeated tries

I am unable to open Lightroom and get the following message each time:
"Lightroom encountered an error when reading from its previous cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches."
It does not fix it the next time and I am unable to open Lightroom. Please help!

Good afternoon Jim. I had the same problem:
"Lightroom encountered an error when reading from its previous cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches."
Thank you very much for your recommendation. It worked great!

Lightroom won't open Windows Explorer

I'm running the current version of Lightroom. For a while now, it hasn't been opening Windows Explorer after I do an export (even though I have it set to do so), but that didn't bother me much so I let it go. But just now I wanted to view one of my photos in it's location on the hard drive, so I chose "show in Explorer" in the right-click menu, and it didn't open Explorer. I searched the forums here, and also via Google for a solution but wasn't able top find one. Can you help?
Thanks,
DS

It is working fine here, both as an Export setting and as a Right Click - Show in Explorer.
Have you tried resetting your Lightroom preferences?Resetting (or 'Trashing') the Lightroom Preferences file - Lightroom Forums

Lightroom won't open my RAW files in Photoshop

I've had this problem for a few months now, but I thought I'd test the waters and see if there's anyone out there who can help me now. Here is a video of what happens when I try to open ANY raw file from ANY camera type in Lightroom to edit in Photoshop. This happens if I go through the menus or if I control+e to open them.
Photoshop CC Opening RAW Problem - vidme
I have uninstalled and reinstalled multiple times. I have reinstalled PS first and LR second like some have suggested. I've gone as far as reformatting my ENTIRE computer TWICE with two different OS versions and installing LR+PS on those versions, still no luck. My workaround has been editing the RAW files in LR, saving the metadata, then navigating to the folder in finder and opening the RAW files directly into PS. That works, but is horribly inefficient.
Anyone have any ideas? I am on the latest versions of LR and PS with my CC subscription.

I do not use a Mac but Windows as delivered from Microsoft does not generate Thumbnails for RAW files or even Photoshop Files like PSD in order to seen the in Windows UI like Windows File Explore (Mac Finder) or in File Open and selection Dialog one needs to install some windows add on. I use FastPictureViered Codec Package, When installed on Windows I can have the thumbnails your looking for. Perhaps You need some Mac add on or Apple Update the see thumbnails for RAW files. I see things like this on the web Digital Camera RAW Compatibility 4.06

Lightroom won't open photoshop CS6.. Edit in Photoshop doesn't work

Lightrrom 4.2 can't use the right click, "edit in" photoshop CS6. I have tried edit, preferences, and created a Preset and pointed it to the CS6 photoshop.exe... still a no-go. Help!!!

I had this problem. You must run Lightroom as administrator - even if the account you are in has administrator priviliges.
Test if this is the problem you are having by opening lightroom in administrator mode:
Open Windows explorer and navigate to where the lightroom.exe file is located.
Usualy in C:\Program Files\Adobe\Adobe Photoshop Lightroom 4.4
Right click on lightroom.exe and select "Run as administrator" from the pop up menu.
Test by selecting a photo and selecting the "Edit in Adobe photoshop CS6" option.
If this works then close lightroom and go back to the "lightroom.exe" folder location,
rightclick on the lightroom.exe file but select "properties", then select the "compatibility" tab and
select "change settings for all users" button.
A box called compatibility for all users should appear, at the bottom there is a checkbox "privilige level"
make sure the "run this program as administrator is checked".
Close lightroom and reopen it.
Hope this helps.

Lightroom won't open! :(

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