错误记录Android Studio 编译报错 ( AAPT: error: failed to read PNG signature: file does not start with PN )

Posted 2022-05-10 韩曙亮

文章目录

• 一、报错信息
• 二、解决方案

一、报错信息

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编译 android Studio 项目时 , 报错

AGPBI: "kind":"error","text":"Android resource compilation failed","sources":["file":"D:\\\\002_Project\\\\002_Android_Learn\\\\ClassLoader_Demo\\\\app\\\\src\\\\main\\\\res\\\\drawable\\\\abc.png"],"original":"ERROR:D:\\\\002_Project\\\\002_Android_Learn\\\\ClassLoader_Demo\\\\app\\\\src\\\\main\\\\res\\\\drawable\\\\abc.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.\\n    ","tool":"AAPT"
AGPBI: "kind":"error","text":"Android resource compilation failed","sources":["file":"D:\\\\002_Project\\\\002_Android_Learn\\\\ClassLoader_Demo\\\\app\\\\src\\\\main\\\\res\\\\drawable\\\\abc.png"],"original":"ERROR:D:\\\\002_Project\\\\002_Android_Learn\\\\ClassLoader_Demo\\\\app\\\\src\\\\main\\\\res\\\\drawable\\\\abc.png: AAPT: error: file failed to compile.\\n    ","tool":"AAPT"

> Task :app:mergeDebugResources FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeDebugResources'.
> A failure occurred while executing com.android.build.gradle.internal.res.Aapt2CompileRunnable
   > Android resource compilation failed
     ERROR:D:\\002_Project\\002_Android_Learn\\ClassLoader_Demo\\app\\src\\main\\res\\drawable\\abc.png: AAPT: error: failed to read PNG signature: file does not start with PNG signature.
         
     ERROR:D:\\002_Project\\002_Android_Learn\\ClassLoader_Demo\\app\\src\\main\\res\\drawable\\abc.png: AAPT: error: file failed to compile.
         

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 22s
57 actionable tasks: 3 executed, 54 up-to-date

二、解决方案

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报错的原因是 Android 项目中使用的 png 格式的图片格式错误 ,

在 build.gradle 中的 android 层级配置了

    aaptOptions 
        // aapt 附加参数
        additionalParameters '--rename-manifest-package', 'com.example.classloader_demo2'
        // 是否开启 png 图片优化检查
        cruncherEnabled true
    

配置 , cruncherEnabled 配置的作用是开启 png 图片优化检查 ,

如果 png 图片格式错误 , 就会报上述错误 ;

解决方案 :

① 删除上述报错的 abc.png 图片即可 ;

② 如果想要保留上述图片 , 则将 " android # aaptOptions # cruncherEnabled " 设置为 false 即可 , 程序可编译完成 ;

    aaptOptions 
        // aapt 附加参数
        additionalParameters '--rename-manifest-package', 'com.example.classloader_demo2'
        // 是否开启 png 图片优化检查
        cruncherEnabled true