Could you please let us know when exactly you see this message in Photoshop?
You can refer the below discussions related to this issue.
Hi Mohit and stevepeck3,
I am having the same problem, just as stevepeck3 described it:
"I updated my PS app yesterday from PS CC 2015 and suddenly I can’t open any jpg file on my computer on PS 2017 or now, PS 2015.
This is the message I see every time: "Could not complete your request because the file was not found.” The application looks like it’s loading the file, and then gives me the pop-up window."
I referenced the first link you gave, Mohit. (The second link did not appear to apply since the error message was different)
My Camera Raw CC is up to date. I couldn't find any problems related to the jpg or filename extension.
stevepeck3 — were you ever able to solve this problem yourself?
I appreciate any help with this, especially since I've got deadlines!
Nope, have not been able to solve it yet.
I have to open JPEGS in Preview, then copy and paste them.
It's slow and annoying.
Thank you for your reply, Steve. Ugh, that does sound slow and annoying!
I really hope someone can actually help solve this problem, especially since I can see we're not the only ones experiencing it.
solved this for me, twice.
Running OS X 10.10.5 is incompatible with the latest Camera Raw
updated Camera Raw last week through Creative Cloud and my Photoshops won't open jpegs.
Rolled back Camera Raw to 9_4, and all is ok again.
run the installer available at one or two of the links
I have the same problem. I cannot open any files in Photoshop. How does one "roll back" the "Camera Raw CC" ? Mine says it is 9.12.1. Is that too new? (I have Photoshop CC 2015 & 2017 running under OS X Yosemite 10.10.5.)
Thanks! That fixed it.
I have not been able to solve the problem yet.