"Could not save photo" messages, but does save each time

[TomB1]

This started this week - each time I take a photo, the little picture of teh photo shows a line crossing it all the time and it gives this message, but, when I look, the photo has been saved. SD card seems to be OK. Any ideas?

PS When I go to the SD card to look at the photos, they are there in the right place (SD card/DCIM/100Android). If I try to delete them, I get "Unknown error occurred.Unknown URL content://media/external/file java.lang.illigalArgumentException". If I ignore it and press "Close", the photo gets deleted

PPS Have (i) done the Apps/Clear Data remedy and (ii) backuped up the SD card and formated it and put everythign back - still doesn't work

[Uliwooly]

@TomB1

There might be something with your SD card, you might not want to risk losing pictures/videos.

What I would do is to back up everything and reformat the SD card and check again. 

[TomB1 · Accepted solution]

I finally discovered something called Xperia Companion that I  didn't know existed, backed up the phone and did a Repair, which sorted out the camera problem. Unfortunately, the restore of the backup didn't do what I expected and I had to set up the phone again from scratch