Error: failed to read PNG signature: file does not start with PNG signature

Question

I replaced the default logo files "ic_launcher.png" in the different dpi folders with my own files, also named "ic_launcher.png", but now I'm getting this error:

Error: failed to read PNG signature: file does not start with PNG signature

when generating apk, on all the 5 files I replaced in the mipmap folders

How do I fix that?

Answer 1

When you create the .apk all the resources are analyzed and if you get the error message:

Error:error: failed to read PNG signature: file does not start with PNG signature.

This error is caused because your resource is not really a .png image, the format is incorrect, the file is corrupt or the .png file is really a vector asset.

you can check it by opening your file.

Answer 2

Yeah me too got this error but you can fix this by choosing refactor>rename and rename the extension into .jpg instead of .png and refactor it that's all.. and you will be not getting error anymore