Going to need more details on what you are doing, what file type or types you are getting this error with, what camera was used to create the image and exactly when do you get this error.
Screen shots would help.
This error usually means that the file has been corrupted somehow, usually because your hard disk is starting to go bad.
First, I would restore the photo from its backup to see if the error goes away.
I would also run some diagnostic checks on the health of your hard disk.
thanks for your answers. I own a macbook pro 2014 version, 15", with adobe for photographers subscription with latest versions of lightroom Cc and Photoshop Cc. I have SSD drive in the laptop.
as for camera, I have Nikon D7100.
I have just started disk utility on my mac without any errors being returned.
My workflow is as follows:
I import and open a photo in LR
with right click : Edit in: - Photoshop
( there not always the dialog comes with the question , if I want to edit original photo, or photo with LR adjustments.)
in Photoshop I just save.
after returning to photoshop, I cannot edit photo in LR anymore, but I can open and work with the photo in Photoshop.
for some pictures it does work, for some it does not.
sometimes it works for a picture once, then not anymore.
if necessary, I can provide some test picture, but these are quite big files.
I can try to open picture in PS from LR, then close LR, save file in PS, make a copy and then open LR again to see if LR might somehow corrupt the file.
will be thankful for any help
Many thanks, Marek
Put one of the photos on a file sharing service like DropBox (it's free for a small amounts of space) so others can examine the file. Post the link here.
Lightroom is not causing file corruption.
First file is corrupted, I can't open it here either.
Second file is fine, I was able to view it here.
but why am I able to open the file here? I have , to be sure, downloaded the file from google drive, photoshop did open it, I saw all layers. no obvious error on opening..
I can open the one marked as "Cannot be opened". This is with the most current version of PS CC, 2015.5 updated this morning.
One thing I am noticing is you aren't saving with Max Compatibility. Without that option enabled in PS LR can't read PSD files with layers.
Once that option is enabled you can then import the image back into LR and continue to make edits on it in LR.
Thx a lot, but how can I doublecheck in PSD file, if I have saved with max compatibility? I have turned this option on in preferences, made a change to psd file, changed it, but still I am not able to edit it in LR. or do I have to "reimport" the image back into LR?
Thx a lot, seems to work. saved the file under different name, asked for max compatibility, reimport in LR works.
tried on another picture, edited with layers, save... in LR all ok
You'll have to open the image in PS, Set the option for Max Compatibility to "Always" in the File Handling section of the PS Preferences then do a Save As and give the image a new name or add a one ( 1 ) to it or you could even Overwrite the original (I wouldn't do that. I'd add a -1 to the end of the name). Then in LR import it.
Once PS Max Compatibility is set to Always every file opened and SAVED in PS will be saved with that option. It will increase the file size considerably. Your 382MB file is now 529+MBs.
Or you could stop using PSD files and switch to TIFF files.
What the Max Compat does is create a Flattened version of the image inside the file. That is why the size gets larger. With TIF files that always happens and the file size is about the same as a PSD with Max Compat.
I stopped using PSD files several years ago and switched to TIF.
thank you for Your advice.
I've been googling a bit today, but may I ask you for Your personal opinion on the PSD / TIFF topic? It is true that I considered TIFF format for much less capable, than it obviously is...
did you personally expect any kind of limitations within the TIFF format, after switch from PSD?
many thanks once more
Not one bit. TIFF works just as well as PSD in PS. The best part is there are many many programs that read TIFF files and only "Some" Adobe products read PSD files.
Not even LR reads PSD files unless you save it with the Max Compatibility setting enabled.
LR reads all TIF files. But then a TIF file does embed a flatten version of the image.