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I cannot open pictures with type PNG, and if i open a picture, it shows me this message (Fatal error reading PNG image file: Not a PNG file) How can i solve this problem please ?

Mustafa Adel
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    I think the PNG file itself is corrupted, or is different filetype renamed to .png –  May 08 '16 at 11:59

1 Answers1

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You may have a corrupt PNG library. Try reinstalling it. Just press Ctrl+Alt+T on your keyboard to open Terminal. When it opens, run the command(s) below: 

sudo apt-get install --reinstall libpng*-dev
Mitch
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