better user guidance if "Image file not found"

When for some reason one or more images of an existing project cannot be found while loading the project a dialog only asks for the first file and doesn't indicate that maybe some more files are missing. Let's also exchange the "OK" button with something more appropriate (since the situation is not OK at all for the user).

This is the current dialog:

 -------------

 Image file not found:
 /complete/very/long/path/to/first/image.tif
 Please select correct image

 [OK]

 -------------

I propose a dialog like this:

The project <project_name> contains one or more files that are missing in <compact/path/to/image/directory> or have been renamed. Please manually select the missing image(s).
-> buttons "Abort" and "Select image(s)"

Now in a second step the user sees a file selection window titled "add images". Is it possible to exchange the title with something that better describes what the user should do like "select <file_name_of_first_missing_image>"? (the first missing image in the project may not be the first in the folder)

Next iteration if more images are missing: please don't always display the full path but a compact path and like in the above example name the image name first. Those additional error messages aren't even needed if the file selection dialog contains the name of the missing file...