Canon PowerShot G10 User Manual page 247

Naming error!
The file name could not be created because there is an image with
the same name as the folder that the camera is attempting to create,
or the highest possible file number has already been reached. In the
Set up menu, set [File Numbering] to [Auto Reset]; alternatively,
save all the images you wish to retain onto a computer, then
reformat the memory card. Please note that formatting will erase all
the existing images and other data.
Change the battery pack.
Battery charge is insufficient to operate the camera. Replace it at
once with a charged one or recharge the battery. Also refer to
Battery (p. 254).
No image.
No images recorded on memory card.
Image too large.
You attempted to play back an image larger than 5616 × 3744 pixels
or with a large data size.
Incompatible JPEG
You attempted to play back an incompatible JPEG image (edited
with a computer, etc.).
RAW
You attempted to play back a different type of RAW image.
Unidentified Image
You attempted to play back an image with corrupted data, an image
with a recording type specific to another manufacturer's camera, or
an image that has been downloaded to a computer and altered.
Cannot magnify!
You attempted to magnify an image recorded in a different camera
or data type, an image edited with a computer, or a movie.
Cannot rotate
You attempted to rotate the image shot with a different camera or
data type, or an image edited with a computer.
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