Lightroom and the preview Cache

Similar Questions

• I can't get my LR to open without this message: "Lightroom has encountered an error when reading the preview cache and need to quit."

  Lightroom has encountered an error when reading the preview cache and needs to stop smoking.  Help, please

  Hi crystalc,

  It seems that the preview cache has become corrupted.

  You must go to the location where your catalog is stored via finder/File Explorer and get rid of the file ending with Previews.lrdata (not .lrcat)

  Default location of the catalog is under Pictures\Lightroom

• Trying to open the message box appears 'lightroom has encountered an error when reading the preview cache and needs to stop smoking' Lightroom "Lightroom will try to solve this problem, the next time that it launches" OK when you press closed Lightroom an

  Trying to open 5 Lightroom, a message appears 'Lightroom has encountered an error when reading the preview cache and needs to quit' "Lightroom will attempt to solve this problem, the next time he throws" when OK key Lightroom quit unexpectedly and the computer returns to the office.  This persisted for 2 days and it has not set itself.  help please.

  Click OK close Lightroom.

  You must manually go to the location of your Lightroom by Finder catalogue / file Explorer and get rid of the Previews.lrdata folder

  By default, the location would be in Pictures\Lightroom folder

• I get a message saying Lightroom met an erorr when reading the preview cache and need to stop smoking. Then told that Lightroom will try to resolve thei problem the next time it starts. Never does. Tried to uninstall and reinstall but no good.

  I get a message saying Lightroom met an erorr when reading the preview cache and need to stop smoking. Then told that Lightroom will try to solve the problem the next time it starts. Never tried to uninstall and reinstall but no good.

  Sound familiar to anyone?

  Hello

  Please go to the save location of the Lightroom Catalog and here please delete the Lightroom Catalog Previews.lrdata folder.

  Now please open Lightroom and check if it works.

  Please let us know if it helps.

  Kind regards

  Tanuj Sandal

• Lightroom has encountered an error when reading the preview cache and needs to stop smoking.  Lightroom will attempt to solve this problem, the next time it starts.

  Can I get an explanation of what past?

  You must remove the preview Cache.

  It is located in the same folder as the catalog in Lightroom. The name of the cache an extract ends with Previews.LRDATA and should be deleted. Not to be confused with *. LRCAT, which should not be deleted.

• Opening 5 LR I see "Lightroom has encountered an error when reading the preview cache and need to quit."  I deleted the folder Preview Cache completely (saved).  What can I do next to load Lightroom?

  Anybody out there can help get LR works again.

  Open LR 5 I see message "Lightroom has encountered an error in its cache of the preview reading and needs to stop smoking".  I deleted the folder Preview Cache completely (saved).  This does not solve the problem.  What can I do next to load Lightroom?

  If you remove the preview cache folder and the problem persists, then most likely you have found the wrong preview cache (it's for a different catalog previews) and you must find the right cache overview. You should use the search function of your operating system to find all files whose name ends with Previews.LRDATA and remove each of them until you can open your Lightroom Catalog.

• Lightroom starts but then I get "error reading the preview cache. LR needs to stop smoking.  Will try next time it starts. I restart from scratch and the same thing happens.  Help please!

  Lightroom starts but then I get "error reading the preview cache. LR needs to stop smoking.  Will try next time it starts. I restart from scratch and the same thing happens.  Help please!

  In the same folder that your catalog file is stored in, there is a subfolder whose name ends with Previews.LRDATA. Delete this subfolder whose name ends with Previews.LRDATA. Do not remove anything else.

• At the launch of lightroom a message saying: Lightroom has encountered an error when reading the preview cache and need to stop smoking.

  Lightroom has encountered an error when reading the preview cache and needs to stop smoking.

  What can I do to make this work?

  

  Restart Lightroom

• Have a problem with Lightroom 5.4.  Given that the program crashed yesterday, will not start, it comes up with the message "Lightroom has encountered an error when reading the preview cache and need to quit."  "Lightroom will attempt to fix this ti net pr

  Have a problem with Lightroom 5.4.  Given that the program crashed yesterday, will not start, it comes up with the message "Lightroom has encountered an error when reading the preview cache and need to quit."  "Lightroom will attempt to solve this problem, the next time he throws."  Except that it isn't, I get the same message and the program closes.  Anyone know what I can do to fix it?  Can not backup, can't do anything.

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

• Met Lightroom and error reading cache... I see to delete the cache of the preview, BUT I will lose all work/photos by doing this?

  I see not to delete the cache of the preview, BUT I will lose all work

  Hi kistah,

  The error indicates that the preview cache has been corrupted, so she would get recreated himself as you start previewing images in Lightroom after you remove it.

  You will not lose any work/changes by removing the cache of previews.

  Just get rid of the .lrdata (not .lrcat) file

• Lightroom has to close immediately after splash because it encountered an error when reading the preview cache

  does anyone have a solution to this problem?

  Lightroom has to close immediately after splash because it encountered an error when reading the preview cache

  Frustrated

  You must remove this file previews.lrdata. It won't do any harm, and it does not solve the problem.

• Error: "LR has encountered an error when reading the preview cache and need to quit."

  Trying to open it, a message "LR has encountered an error when reading the preview cache and needs to stop smoking. LR will attempt to fix the next time it starts. "apppears and it stops. Tried many launches and the same error appears. Help!

  Post edited by: Brett N

  OK, go to the Lightroom folder (in images by default) and delete the folder/file ending with the extension.lrdata. Previews have somehow become corrupt.

• LR has encountered an error when reading the preview cache and needs to stop smoking.

  I have the trial version of Lightroom 30 days.  I was able to use it for a week, but the last weeks of 1,5 to 2, it was locked up and that gives this error message.  How to solve the problem?  And how to reset the free 30 day trial?  I wish I had the time using the product before deciding on the annual contract.

  "LR has encountered an error when reading the preview cache and needs to stop smoking.  Lightroom will attempt to solve this problem, the next time it starts. »

  Thank you.

  Delete the cache of the overview of the Lightroom folder in your pictures folder if you used the default location. It has the extension .lrdata.

  You cannot reset the trial period.

• Curious question about previews of Lightroom and Camera Raw Cache

  Posted in the Flickr Lightroom group as well:

  I noticed something on the previews of Lightroom (3.6) and cache Camera Raw, intrigued me.

  I create a new, empty catalog, and purge the Cache of Camera Raw.

  Then I import ONE Nikon (NEF) RAW file with dimensions 2592 x 3872 (10 mega pixels - 10,036,224).

  Then I export this NEF file to a TIFF 8-bit file uncompressed. You can expect this file size TIFF about 30 MB (10 megapixels x 3 bytes per RGB value) and in fact the TIFF file is size of 30,135,830 bytes. If you export the TIFF file same ZIP compression to specify the size of the resulting file is 10,834,038 bytes. The compression achieved here is obviously going to be highly specific to the image, but so far no surprises.

  When you import I said make 1:1 previews and I spend in the Loupe and see the whole picture in the format 1:1. I also visit the development module and do a lot of manipulation on the image but not cropping.

  At the conclusion of all this, I got out of Lightroom and examine file camera Raw Cache as well as previews of Lightroom file size. It would be my expectation that the previews folder should have a complete image rendering and Camera Raw Cache should also have a display form of raw data. What do you expect the size of these respective folders to be?

  Indeed - in my tests that the previews folder totals a simple 1 675 264 bytes and Camera Raw Cache that contains an image DAT file cached one is simply 267 374 bytes. This doesn't seem like enough bits to preserve the image rendered, nor there at - it an image is full-size, nestled in the actual catalog - the file is not large enough to hold that. And yet I can use the magnifying glass to the format 1:1 mode and move an image to the image without loading delays (even when you import multiple files).

  I wonder if I missed something obvious in my analysis and that, if someone might not care to speculate on what magic Adobe's practice here. Even if grant us them special algorithms to compress their insights that I don't see how they can achieve a compression so much larger than the file ZIP compressed TIFF realizes.

  And for those who might think to ask - I have told these experiences with multiple raw images and on MAC or PC platforms.

  I look forward to answers or interesting theories or maybe someone could reproduce the results of the experiment and report.

  The previews in the preview cache are JPEG files. JPEG compression is much more effective than the lossless zip compression. No magic here.

  Mr. Chan is obviously the expert on regards to the Camera Raw Cache.

  HAL

• At startup, LR 4.4 cannot read the preview cache and stops

  Can't open LR 4.4.  Get LR error message cannot read the preview cache and needs to close.  Says he will try to repair to the stimulus.  That happened after that laptop battery so closed that I was in LR.

  Do you this for your operating system, using the Explorer or Finder, without LR running.  You must delete the FOLDER that is located in the same folder as your LR catalog, but with a name starting with the same name as your catalog but then including a Previews.lrdata suffix.