Lightroom preview cache error messge

hello, I keep on getting an error message "Lightroom has encountered an error while reading the preview cache and must quit". can anyone tell me what the problem is and help me solve it?
thanks in advance
abel

As the message says.....the preview cache has a problem, probably there's a corruption in there somewhere, and this is preventing Lightroom from working. Easiest solution is to delete the existing preview cache, and on next start of Lightroom a new cache will be created. The downside is that initially there'll be no previews available although Lightroom will start to build new ones automatically, but only for images as they are brought on screen in the Grid or Filmstrip. Alternatively you can instruct Lightroom to build new previews (for ALL or just selected images) using the Library>Previews options, but if doing ALL you may want to set that going overnight as it can take a while depending on the number of images in the catalog.
The previews cache is contained in the sub-folder ending in "Previews.lrdata" which is adjacent to the catalog......just make sure you delete this folder, and NOT the catalog file ending in ".lrcat".

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Lightroom preview cache error- can't start

"Lightroom encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches."
Cn't fix it

Moving to light room.
You can refer to
lightroom encountered an error when reading from its preview cache and needs to quit
Error Reading Preview Cache - LR keeps crashing or quitting. - Lightroom Forums
They can be useful.
Regards
Rajshree

HELP PLEASE!!!! Lightroom Preview Cache Error

Hi There,
Has anyone ever experienced the following error when trying to open Lightroom:
" Lightroom encountered an error when reading from it's preview cache and needs to quit "
It then says below that in smaller writing:
" Lightroom will attempt to fix this problem the next time it launches "
But unfortunately it hasn't :-(
I have uninstalled, reinstalled, restored etc etc.......
Does anyone know anything about this??
Any help greatly appreciated
Thanks in Advance :-)

Oh My Goodness!!!!
Thankyou so ver very much!!!! I have been trying to work this out thinking my computer was buggered an everthing.....
It's just opened!!!!!
Thankyou Thankyou Thankyou

I get an error that says that LR5 encounterd a preview cach error when trying to start LR5 and that it will try to fix it the next time it starts. What can I do to fix this error?

I get an error that says that LR5 encountered a preview cache error when trying to start LR5 and that it will try to fix it the next time it starts. What can I do to fix this error?

Go to the folder with you Lightroom Catalog (usually in Pictures) and delete the folder ending in .lrpreviews
This contains the previews for the files Lightroom has linked to. They will need to be rebuilt which can be done while working or selecting an amount you want to rebuild and accessing the rebuild command in the Library Dropdown menu...

Lightroom 4.4 64-bit won't start-up; preview cache error

the error message is "Lightroom encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches" But it never gets past this screen regardless of now many times I try!

Delete your preview cache. It is a folder whose name ends with Previews.LRDATA, it is in the same folder as your Lightroom catalog. Do not delete anything else. Do not delete the LR catalog.

Lightroom is crashing every time I open it with a "preview cache" error.

Says "Lightroom encountered an error when reading from its preview cache and needs to quit." and then it forces it to close. I've tried uninstalling/reinstalling, restarting my computer (which is only a few months old). As a photographer in the middle of the busy season, this is EXTREMELY frustrating!! Help please!

john beardsworth wrote:
In the same folder as your catalogue is a previews.lrdata folder. Delete this (in Finder or Explorer) and restart LR.
Nice work, John. That seems totally random but I've not had this issue. How did you figure it out?

Lightroom 5 preview cache error

Hi,
I have a new problem with an old issue. I have read as many threads as I could on it and cannot seem to fix these issue.
I had been using LR4 and added new drives to my Mac Pro 2009 OS 10.6.8 w/48RAM
I started getting the the "LR encountered an error when reading the preview cache and needs to quit" message.
I have since installed OS Yosemite and installed LR5.2
I followed the instructions to delete the Previews.Irdata and then get this message
I have older catalogs from LR2,3 and 4 on another drive. Please don't laugh, I have no idea what to do.
There are .Irdata files in most of those folders too.
What do I do first?
I appreciate any suggestion and support.
Thanks RPT

Looks like a general Mac problem rather than particular to Lightroom. A Google search for that exact error message shows a bunch of possible solutions.

Problem with reading lightroom preview cache

i have Lightroom 5.4 and i come home from a shoot and opened lightroom to import my photos and it came up with this message " Lightroom uncounted an error reading its preview cache and needs to quit" i have done this several times and even uninstalled it and re installed it and still comes up with the same message as i need this to do my photography work can yo let me know why this is happening and can it be fixed

There are many threads here in this forum where the solution is stated, just do a search

Preview Cache Error

I keep getting an error when I try to open LR5. "Lightroom encountered an error when reading from its preview cache and needs to quit. Lightroom will attempt to fix this problem the next time it launches." But every time I try to open I get this and it has not fixed itself. What needs to be done?

Delete the .lrdata folder that sits along side the Catalogue (.lrcat). Lightroom will create a new folder when it starts.

How to fix LR5.6 preview cache error message

LR5.6 will not start up. I am getting message "Lightroom encountered an error when reading from its preview cache and needs to quit" "Lightroom will attempt to fix this problem the next time it launches"
Restart LR and keep getting same error message.
How do I fix this?
Bob

This is the forum for discussing development of LR plugins. You'll have more success posting in the main LR user-to-user forum: Photoshop Lightroom.
But before you post, a search using the "Search Communites" box in the upper right shows there are many threads discussing their error message: https://forums.adobe.com/search.jspa?q=Lightroom+encountered+an+error+when+reading+from+it s+preview+cache+and+needs+to+q…

LR4 Give Preview Cache Error

Every time I use LR4, it encounters an error at some point in the first 10 minutes of use. It always says, "Lightroom encountered an error when reading from it's preview cache and needs to quit". What can I do to resolve this issue?

I renamed the *lrdata folder to *lrdata.old then rebooted into LR and let LR rebuild that folder. Seems to be working so far. I'll let you know if this isn't a fix.

Lightroom Preview Cache Problem

I am running Windows 8.1. When I start Lightroom 5.3, I get a dialog saying "Lightroom encountered a problem reading from it's preview cache and needs to quit." Tried reinstalling. Can't get past this.

Agree about deleting previews. This doesn't cause any problems. If Lightroom can't find a preview when it wants one, it simply recreates it. The only penalty is that accessing images in Library Module may be a bit slower for a while.

How to get my catalogue back after a Lightroom view cache error?

LR5 - Been working on a wedding on an external hard drive. While working on it...LR blinks out and closes. Tried to reopen...but keeps saying that there is a catalogue error and that lightroom will try to fix it the next time it fires up. Nope. I tried 8 times and this includes complete reboots...but error doesn't go away. Jump on the forums and they said to delete the Cache folder and then when I reboot that LR would have to recreate that and it would take some time.
I did that....all 100K+ previews....this took some time. I then go to restart LR5 and it is as though the software was brand new....no photos at all....not missing file.....gone! My photos are still on my external hard drive - no harm done. But to start the editing process over again on the two weddings I have on there....would take HOURS!!
IS there a way to get the edits and photos back without re-importing them? I do not have backup LR5 files before the import of this wedding.

John thanks for hanging in there with me! I am a photographer first.....and then a computer technician....like 12th.
I had checked the Recycle bin prior to your message and there is no such file like that in my bin. When I go to the LR file...and click on the Lightroom5 catalogue file....it opens lightroom and has none of my older files in it. I was calling the preview files the data files...sorry I did not know the correct jargon for those files.
It sounds like I may have deleted the original Lightroom 5 Catalog.lrcat. And then according to the forum...emptied my bin. When I opened lightroom again it created another Lightroom5 Catalog.lrcat file. When I click on it....as to open the catalogue...it opens LR with just the 68 photos that I put back into lightroom today for I need to get some editing done. I am not sure if this could have made going back to the way things were even possible. I have two weddings and three family shoots that are coming up on deadline...so I was just trying to get some done before it go too close to the end of my delivery periods.
I had an IT guy come over....and he was kind of lost when it came down to this. He believes all is lost. I was just hoping there was a way of importing the preview files....to regenerate the catalogue....to regain my edits...but if I deleted the lr5 catalogue file....it sounds like I may be at a dead end? Is this correct?

Lightroom encountered an error when reading from its preview cache. helping a friend..

Im not a lightroom user. even though I have some version 4. I use acdsee pro 6. but my friend has the 5.6 CC version but has a language issue so im trying to help me. basically will guide him over the phone.
he was editing a wedding, the computer crashed. he rebooted, lightroom came with the preview cache error. he rebooted again..same issue. he did a repair but to no avail. he tried installing an older version in parralel but no success.
what exactly does he need to do. im not a light room user. I use PS CS6 but not LR.
anybody can help to help him. I did read some posts and it noted about thumbnail previews and removing or erasing/renaming
1- where is this file located please?
2-are there many of these ? and how do I know which is the one he needs to choose?
thank you for your help.

See answer at Re: "Lightroom encountered and error when reading from its preview cache and needs to quit"

Have a problem with Lightroom 5.4. Since the program crashed yesterday it won't launch, it comes up with the message "Lightroom encountered an error when reading its preview cache and needs to quit". " Lightroom will attempt to fix this problem net ti

Have a problem with Lightroom 5.4. Since the program crashed yesterday it won't launch, it comes up with the message "Lightroom encountered an error when reading its preview cache and needs to quit". " Lightroom will attempt to fix this problem next time it launches". Except that it doesn't, I keep getting the same message and the program closes. Does anyone know what I can do to repair it? Can't back up, can't do anything.

There are dozens of threads in this forum that describe the fix

Lightroom preview cache error messge

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