在 Flutter/Android 构建上找不到 protoc-3.9.2-osx

Question

我正在开发一个 Flutter 应用程序，它集成了使用 Protobuff 的本机包。我在 Android Studio 和 Mac（Apple 操作系统）上工作。

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在 Windows 上，可以构建应用程序，但由于我在 MacO 上工作，所以无法再构建应用程序。我收到以下错误：

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FAILURE: Build failed with an exception.\n\n* What went wrong:\nExecution failed for task \xe2\x80\x98:mypackage:generateDebugProto\xe2\x80\x99.\n> Could not resolve all files for configuration \xe2\x80\x98:mypackage:protobufToolsLocator_protoc\xe2\x80\x99.\n   > Could not find protoc-3.9.2-osx-aarch_64.exe (com.google.protobuf:protoc:3.9.2).\n     Searched in the following locations:\n         https://jcenter.bintray.com/com/google/protobuf/protoc/3.9.2/protoc-3.9.2-osx-aarch_64.exe\n\n* Try:\nRun 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.\n\n* Get more help at https://help.gradle.org\n\nBUILD FAILED in 888ms\nException: Gradle task assembleDebug failed with exit code 1\n

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iOS 上的构建也不起作用。

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我该如何解决这个错误？您对问题出在哪里有什么想法吗？

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Answer 1

我找到了基于以下内容的解决方案：https ://github.com/grpc/grpc-java/issues/7690

我创建了文件$HOME/.gradle/gradle.properties：：

protoc_platform=osx-x86_64

我的 build.gradle ：

protobuf {
// Configure the protoc executable
protoc {
    // for apple m1, add protoc_platform=osx-x86_64 in $HOME/.gradle/gradle.properties
    if (project.hasProperty('protoc_platform')) {
        artifact = "com.google.protobuf:protoc:3.9.2:${protoc_platform}"
    } else {
        artifact = "com.google.protobuf:protoc:3.9.2"
    }
}
plugins {
    javalite {
        // The codegen for lite comes as a separate artifact
        if (project.hasProperty('protoc_platform')) {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0:${protoc_platform}"
        } else {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
        }
     }
    }
 }

Answer 2

x86_64适用于英特尔和苹果芯片

• https://repo1.maven.org/maven2/com/google/protobuf/protoc/3.20.1/
• https://repo1.maven.org/maven2/com/google/protobuf/protoc-gen-javalite/3.0.0/

import org.apache.tools.ant.taskdefs.condition.Os

// Compatible with macOS on Apple Silicon
def archSuffix = Os.isFamily(Os.FAMILY_MAC) ? ':osx-x86_64' : ''

protobuf {
    protoc {
        artifact = "com.google.protobuf:protoc:3.20.1$archSuffix"
    }
    plugins {
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0$archSuffix"
        }
    }
}