Lightroom catalogs don't open on Mac OS X Yosemite 10.10.

Computer is MacPro 2008.
Newest ACC Lightroom version, plenty of storage space and Ram. Same happens with all my main catalogs.

Is there an error message?

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Lightroom 3 don't open

I just install the Mac os Lion and I try to install the Adobe photoshop Lightroom 3 but don't open I allready sent the problem to Apple but I hope someone can help me because I really need it .
Tank you.

Hello,I once tried a trial version of Lightroom and decided to buy lightroom 3.I've search on forums and even chat with Adobe with no answer to my problem.I download the program and it's working fine on my boyfriend's side.(We are two adminstraters on my computer)When I clic to open lightroom a window appears "Lightroom-ouverture de cataloque:DSC_0738.NEF.lrcat" and I have another window at the same time from microsoft ..error...The letters and numbers I have are..
10.0.40219.325
appVer:3.6.0.10
offset:0008d6fd
ModName:msvcr100.dll
Then the program closed...I found the .lrcat file,double clic and LR still doesn't open.I saw on a french forum that I have to rename the cataloq but I still don't know how to do that.I started using a computer only five years ago and I'm not very good but I love photography and I'm sure lightroom would be fun for me.
I spend hours trying to figure it out and I don't know what to do ...I saw an answer on the forum of Adobe saying to click on the control button and open the program at the same time ...didn't work....
Is it possible that when I had the trial version I've created a catalog and this catalog(that no longer exists)gets in the new program so I can't open it anymore....I don't know what to do anymore...please can someone help me...thank you Gisele

Error. Lightroom catalog can't open

Hello I keep getting the error: 'The Lightroom catalog named Lightroom 5 catalog cannot be opened because another application already has it opened' when opening Lightroom. There is no other application using it. there is only one file available, no back up as I have been uploading a 5.3TB catalogue over the past 4 days and didn't shut down. the RAW files sit on a separate hard drive to the laptop where the Lightroom catalogue is. I cannot now access that catalogue. I had a crash prior to this happening ... can anyone help out there?

I just wonder whether it was GB not TB!!!!
JimHess wrote:
Good grief! That flew right by me. That is one huge catalog. I wonder if there is a "practical" limit to catalog size.Or I wonder if this is terminology confusion. Catalog size vs. library size.

Lightroom Catalog won't open

I was importing into LR3 for the first time and while I was filling out info (renaming files), my MAC started to pinwheel. Finally I was forced to "force quit". Now when I try to relaunch LR from my alias or the HD it gives me this message;
"LIghtroom cannot use the catalog because it is not writeable and cannot be opened".
What happened? What do I do?
Thanks :-(

First search for a file ending in .lock. It should be next to your LR catalog. When you find it, delete it. Most likely all will be well again. If not, come back and we can continue to help you. The ".lock" file is created when your catalog is open to keep another user from using the catalog at the same time, which could corrupt it. When LR closes normally the .lock file is automatically deleted. If LR locks up or the computer crashes, the .lock file is often left behind and keeps LR from reopening that catalog. Delete only the .lock file.
John
John G. Blair Studio
Occidental, California

Lightroom Catalog and Apple Open Directory Users

We are attempting to run Lightroom in our photo journalism classes and we are unable to setup the application because it will not create the Catalog file.
All of the users in Open Directory have their OSX 10.8 home folder stored on our Apple Server. This enabled them to log into any one of the computers in the lab and have access to their data/documents.
Lightroom refuses to create the Catalog file because it treats the home folder as a network folder.
My predecessor found some way around this in the past but he didn't document it and I can't find any evidence of it either.
Can anyone help me out here? Surely there are other people out there trying to use Adobe Products who also utilize Apple's "Open Directory" (its like apple's version of Active Directory).
The only help online I've found was to try and create symbolic links but even after making symbolic links from the local HD to the Network user Home folder lightroom still refused to create the catalog file.

its been almost a year and we still don't have any good answers to this issue.
Lightroom is not usable for any domain/directory enabled accounts because their home directories are stored on the network.
Is there anything else we can do? We do not want them to "share" their catalogs but we really need them to be able to store their catalog on their network home because they do not always use the same computer and policy disallows saving documents or files to the local hard drives for students.

I have just updated Lightroom from 5.5 to 5.6. On startup I now get a message saying it can't load my catalog because "Lightroom catalogs cannot be opened on...removable storage". Of course my catalog is on removable storage, because thats how I want to

Either this is a crap change to the program, or I'm stupid. Which is it?

Have you tried anything?
Like moving your catalog to an internal hard disk to see if you can open it there?
Maybe try moving it to a different external drive (even a thumb drive) and see what happens..
I mean, lotsa people open catalogs on removable storage with Lr5.6, so you might have to try stuff to shake it out..
Rob

ID won't open. Mac mini w/Yosemite. Error 150.30

Mac mini, Yosemite OS 10.10, installed Java upgrade, restarted computer, ID CS4 won't open now. Error 150.30. Solution?

Error "Licensing has stopped working" | Mac OS
If you are having the installation media and serial number I would suggest you to uninstall and re-install the product.

LR5 - one catalog to work on both Mac-OSX and PC-Windows versions of Lightroom ?

Hi,
I need help to determine if this workflow has a chance to work.
PC-Windows computer is at home, I travel with MacBook Air with OSX system.
I place a job in a catalog that is located in a 'dropbox' folder, so a folder that auto-synchronizes itself on both the Mac & PC.
Will I be able to edit photos inside the very same one LR5-catalog on both Mac & PC or a PC-created catalog cannot be opened on Mac ?
What I basically want to achieve is have raw files on PC, start work on PC, but when I try I wanted to use SMart Previews to be able to do edits on the go, pick up where I finished on the PC and when I get back home for the catalog to be synchronized so any edit I did on the MacBook to be visible back on the PC so I can just smoothly work on images regardless of which machine I use.
How to accomplish that ?

exFAT is probably your best bet because it doesn't have file size limitations that FAT32 does and is readable and writable by both Windows and the Mac OS. I have no idea what your TV wants; best to check the owners manual.
Those formats won't damage the files but I have seen quite a few comments that the exFAT formatting should be done on a Windows computer even though Disk Utility offers that option.

I went to download the new lightroom update but my computer went dead at 51 percent. I got back on and it was gone so i reinstalled now when i click to open it sats the lightroom catalog named lightroom 5 catalog cannot be opened because another applicati

please help I need to open my my lightroom to edit and it says lightroom catalog cannot be opened bc another application already has it opened.... I went to download the update but computer went dead when came back on it was gone so I reinstalled. now wont open but ps will help birth session to edit

Make sure you don't have another copy of Lightroom actively running on your computer. If not, find your catalog file in Finder/Explorer. Look for a file with the same name, but with a .lock extension. delete that file. Now Lightroom should open the catalog again.

Where is my Lightroom catalog?

Help! I lost a 1TB external hard drive of my photos(my whole collection). When I went to upload my files from my backup drive, I noticed my catalog was empty(all my edits gone). Im not sure what happened, but I tried to look in the "backup" folder that lightroom backs up the catalog to, and that seems empty as well.....Im using Lightroom 5.6 on a mac book pro with the latest operation system. Admittedly im not very computer savvy, so this is frustrating. I have thousands of edits im missing. Even stranger is the 3TB external I use a "time machine" should contain backup files of my lightroom catalog(I think?) but it has a folder of about 100 random edits in it.....Im fearing the worst here......any help would be appreciated......The lightroom catalog was stored on my mac hard disk, not the 1TB hard drive I lost, so Im confused as to why I lost all edits.........

The LR catalog is a file ending in the extension ".lrcat". Perhaps it wasn't stored where you think it was. You could try using Spotlight to search for it, though my own experience is that Spotlight is not reliable for searching the entire drive. I suggest downloading the free EasyFind app from the Mac app store and searching your Macintosh hard drive for ".lrcat" (with the options Only Files, Phrase, Ignore Case, Package Contents, and Invisible Files & Folders).

Is Lightroom 5 compatible with Mac OS X Yosemite?

I am running Lightroom 5.6 and Mac OS X 10.9.5. Has Lightroom 5.6 been tested with Mac OS X Yosemite?

I've been running LR 5.6 under Yosemite for a couple of weeks. No issues (using LR or other apps) thus far.
In general, the new OS is an improvement over Mavericks too!

I have a new Mac Pro computer and have migrated my files from my older computer to the new computer. In trying to open a Lightroom catalog on an external hard drive I keep on getting the message "lightroom cannot use the catalog named " " because it is

I have a new Mac Pro computer and have migrated my files from my older computer to the new computer. In trying to open a Lightroom catalog on an external hard drive I keep on getting the message "lightroom cannot use the catalog named " " because it is not writable and cannot be opened. I have fixed all the "permissions" and yet it will still not open. How do I fix this?

Hello Forum Members,
I figured it out. You have to select the actual logo of the Lightroom catalog and then click on "get info" and allow what ever your new user name to "read and write". That worked!
Henri Silberman

Lightroom CS 5.5 Catalog Won't Open - So much work lost.

My Most important Lightroom CS5.5 Catalog won't open. I have a Mac. I guess it didn't shut down properly. I called support and was not allowed to speak with technical support. I have hundreds of hours of work which are lost if I cannot open it. The error says: "Unexpected error opening catalog. The catalog could not be opened due to an unexpected error."
Please help. I don't know what to do.

I am at work on Windows right now, not on my mac at home ... but you should have a whole bunch of backup catalogs in your Lightroom folder. I can't give you the exact location, but they are there ... in fact, in your screen shot there is the backup folder right there.
Start with the most recent backup and try to open, and go backward from there until you find one that opens up.
(Assuming of course you backup your catalog. I have LR setup to ask me once a day).
If you have time machine set up, go back and grab a recent catalog.

Shared Lightroom catalog with Mac OS X Lion

I keep my Lightroom catalog on my Macbook Pro so I have access to my pictures while travelling. But for editing, I use a desktop PC running Lightroom on Windows 7 on the same catalog. My process for doing this is:
On the Mac, enable SMB sharing.
On Windows, mount the SMB share.
On Windows, use "subst" to map the SMB share to a new drive root.
(This avoids Lightroom's spurious error about not supporting network volumes.)
On Windows, launch Lightroom and open the catalog on the mapped drive.
This worked in Snow Leopard. But after upgrading to Lion, Step 4 gives me an error:
Lightroom cannot use the catalog named "Lightroom 3 catalog" because it is not writable and cannot be opened.
This could be caused by incorrect permissions or because another Lightroom application is using the catalog. You may try to correct the problem or you may select a different catalog.
Permissions seem OK: I can edit the catalog and the Previews.lrdata folder in Windows Explorer. And I see no stray .lrcat.lock file that might prevent it from opening the catalog.
The Mac version of Lightroom can open the catalog just fine, so I suspect Lion's new SMB implementation broke this somehow.
Has anyone got a shared Lion -> Windows catalog to work?

OK, I found a solution. The following page describes how to manually install an SMB implementation (Samba) that actually works. It requires installing Xcode from the App Store, installing MacPorts, and some command-line tinkering to configure Samba:
http://forums.sonos.com/showthread.php?t=24022
Once you've done that , follow the instructions in this post to create launchd entries that will start Samba at boot time:
http://forums.boxee.tv/showpost.php?p=205428&postcount=48
More details are here if you run into trouble:
http://forums.boxee.tv/showthread.php?t=38629
While I can now access my LR library again from Windows, this is just the latest in a series of annoying bugs with OS X Lion. I am not a happy camper— but I'll save that for the Apple forums.

I use light room on both my desktop and laptop, syncing catalog via google drive. I have been working on the desktop all week, editing a collection in lightroom. this morning i opened the program however to find only an old version of the catalog. All wor

Hi all
So I have lightroom on both my laptop and desktop and sync catalog through google drive.
I have been working on the desktop all week on edits of high res scan in lightroom.
Today i opened the program to find everything i have done for a week isn't there.
Help.
I feel it has synced to the last time i opened on my laptop and lost what ive on on the desktop.
any help much appreciated.
p

I have no idea what happened, why you are seeing what you are seeing.
My only guess at finding the missing work is to look under File->Open Recent on both computers.
I do know that if you aren't making regular backups of your catalog file, and relying on synchronizing catalogs from one computer to another via the cloud, you are living very dangerously, and now you are possibly going to pay the consequences of not making regular backups.

Lightroom catalogs don't open on Mac OS X Yosemite 10.10.

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