树莓派编译Android应用时AAPT2报错求助

我正尝试在树莓派上编译一款Android应用，执行gradlew assembleRelease命令时出现如下AAPT2错误，全网未找到可行解决办法，盼求帮助：

AAPT2 aapt2-7.2.0-7984345-linux Daemon #0: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �@��@8
> :app:mergeReleaseResources                                                                                                                                                                 @#!@@@����T�T�: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #0: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #0: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: ELF: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #0: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 2: Syntax error: "(" unexpected
AAPT2 aapt2-7.2.0-7984345-linux Daemon #1: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �@��@8
> :app:mergeReleaseResources                                                                                                                                                                 @#!@@@����T�T�: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #1: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #1: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: ELF: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #1: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 2: Syntax error: "(" unexpected
AAPT2 aapt2-7.2.0-7984345-linux Daemon #2: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �@��@8
> :app:mergeReleaseResources                                                                                                                                                                 @#!@@@����T�T�: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #2: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: �: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #2: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 1: ELF: not found
AAPT2 aapt2-7.2.0-7984345-linux Daemon #2: Unexpected error output: /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/transformed/aapt2-7.2.0-7984345-linux/aapt2: 2: Syntax error: "(" unexpected
> Task :app:mergeReleaseResources FAILED

问题原因 #

报错本质是架构不兼容：树莓派采用ARM架构，而Gradle缓存中下载的aapt2-7.2.0-7984345-linux是x86_64架构的二进制文件，ARM系统无法直接执行x86程序，因此出现"ELF: not found"、语法错误等提示。

解决办法 #

方法1：强制使用ARM64版本的AAPT2 #

1. 清理现有错误的AAPT2缓存文件：

   rm -rf /root/.gradle/caches/transforms-3/b4396707ed6be3225c88a086a05435f8/
   

2. 在项目根目录的gradle.properties文件中添加以下配置，指定下载ARM64架构的AAPT2：

   android.aapt2FromMavenOverride=com.android.tools.build:aapt2:7.2.0-7984345:linux-arm64
   

3. 重新执行编译命令：

   ./gradlew assembleRelease
   

方法2：降级Android Gradle Plugin版本 #

部分较新的AGP版本可能未默认提供ARM架构的AAPT2包，可尝试降级到7.0.x系列版本（如7.0.4），这类版本通常自带兼容ARM的AAPT2。修改项目根目录build.gradle中的AGP版本：

buildscript {
    dependencies {
        classpath 'com.android.tools.build:gradle:7.0.4'
    }
}

修改后清理缓存并重新编译。

内容的提问来源于stack exchange，提问作者Torralba