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

解决Android Studio打包PNG错误
本文详细介绍了在使用Android Studio进行APK打包时遇到的“Error:error:failedtoreadPNGsignature”错误及其解决方法。通常,此问题源于图片格式不正确或后缀名更改,文章建议通过重新处理图片并保存为正确的PNG格式来解决问题。

android studio打包错误Error:error: failed to read PNG signature: file does not start with PNG signature

liuhaha1015 2019-06-06 17:41:03  519  收藏
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打包apk时报:Error:error: failed to read PNG signature: file does not start with PNG signature.

android studio

错误:无法读取PNG签名:文件没有从PNG签名开始。

一般都是图片格式有问题 可能是后缀更改了,可能是图片压缩时产生的问题。 重新处理图片再加载 

解决方法:

去文件夹找到对应的图片,右键编辑(可以使用画图编辑),然后文件 - 另存为 -  png图片 ,吧原图片替换就好.
 

C:\Users\Administrator\Desktop\apktool>java -jar apktool_2.11.1.jar b ys_out --copy-original -o patched.apk I: Using Apktool 2.11.1 on patched.apk with 8 threads I: Checking whether sources have changed... I: Checking whether sources have changed... I: Smaling smali folder into classes.dex... I: Checking whether sources have changed... I: Checking whether resources have changed... I: Building resources with aapt2... W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher_foreground.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher_foreground.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher_round.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-hdpi\ic_launcher_round.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher_foreground.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher_foreground.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher_round.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-mdpi\ic_launcher_round.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher_foreground.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher_foreground.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher_round.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xhdpi\ic_launcher_round.png: error: file failed to compile. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xxhdpi\ic_launcher.png: error: failed to read PNG signature: file does not start with PNG signature. W: C:\Users\Administrator\Desktop\apktool\ys_out\res\mipmap-xxhdpi\ic_launcher.png: error: file failed to compile. Exception in thread "main" brut.androlib.exceptions.AndrolibException: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\Administrator\AppData\Local\Temp\brut_util_Jar_176703190601594674776369028066336165951.tmp, compile, --dir, C:\Users\Administrator\Desktop\apktool\ys_out\res, --legacy, -o, C:\Users\Administrator\Desktop\apktool\ys_out\build\resources.zip] at brut.androlib.AaptInvoker.invoke(SourceFile:106) at brut.androlib.ApkBuilder.buildResources(SourceFile:352) at brut.androlib.ApkBuilder.build(SourceFile:93) at brut.apktool.Main.main(SourceFile:322) Caused by: brut.common.BrutException: could not exec (exit code = 1): [C:\Users\Administrator\AppData\Local\Temp\brut_util_Jar_176703190601594674776369028066336165951.tmp, compile, --dir, C:\Users\Administrator\Desktop\apktool\ys_out\res, --legacy, -o, C:\Users\Administrator\Desktop\apktool\ys_out\build\resources.zip] at brut.util.OS.exec(SourceFile:143) at brut.androlib.AaptInvoker.invoke(SourceFile:102) ... 3 more ys_out\smali\com\example\floatingball\FloatingBallService.smali[97,0] missing EOF at '.class'
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