Unable to hibernate: Swap header not found

- - Latest reply:  Ersa21 - Nov 13, 2018 at 10:33 AM
I am using ubuntu 18.04 and I created a swap partition after installation of space 10GB using Gparted and included in fstab.
UUID=1504fc2a-05b3-4af6-9ea3-c44068e7aec5 /               ext4    errors=remount-ro 0       1
/dev/sda4 none swap sw 0 0
/swapfile none swap sw 0 0


But I am unable to hibernate as it says no swap header found. What does this mean and how to solve this problem?
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December 14, 2018
Thanks. I just got this problem solved.
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