Installed gimp 2.8 from ubuntu repositories, I open an image, edit it, and try to export it to same format (jpg) to overwrite the existing image and I get this message:
JPEG image plug-in could not save imageUbuntu 17.04 same gimp version worked just fine. This is now one more broken software among many in "new" Ubuntu.
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I have faced to the same Problem and I solved it by Activating the Swap partition, I think it caused by the low memory.
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