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 Ship）上工作。

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：

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ‘:mypackage:generateDebugProto’.
> Could not resolve all files for configuration ‘:mypackage:protobufToolsLocator_protoc’.
   > Could not find protoc-3.9.2-osx-aarch_64.exe (com.google.protobuf:protoc:3.9.2).
     Searched in the following locations:
         https://jcenter.bintray.com/com/google/protobuf/protoc/3.9.2/protoc-3.9.2-osx-aarch_64.exe

* 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 888ms
Exception: Gradle task assembleDebug failed with exit code 1

iOS 上的构建也不起作用。

如何解决此错误？您对问题出在哪里有什么想法吗？

Answer 1

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

我创建了文件：

$HOME/.gradle/gradle.properties

，其中：

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 Intel 和 Apple 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"
        }
    }
}

Answer 3

它适用于我的 MacOs-m1 pro 芯片：

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

protoc_platform=osx-x86_64

并将其添加到您的

build.gradle

（应用程序）

android {
    ......

    sourceSets {
        main {
            proto {
            }
        }
    }
    .......
    configurations.all {
        resolutionStrategy.force 'com.google.code.findbugs:jsr305:3.0.2'
        resolutionStrategy.force "com.android.support:support-annotations:$supportLibVersion"
    }
}

protobuf {
    protoc {
        artifact = "com.google.protobuf:protoc:3.0.2:osx-x86_64"
    }
    plugins {
        grpc {
            artifact = 'io.grpc:protoc-gen-grpc-java:1.1.2:osx-x86_64'
        }
        javalite {
            artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0:osx-x86_64"
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite {}
                grpc {
                    // Options added to --grpc_out
                    option 'lite'
                }
            }
        }
    }
    generatedFilesBaseDir = "$projectDir/build/generated"
}

Answer 4

如果您使用 Apple Silicon 芯片并遇到此类错误：

* What went wrong:
Execution failed for task ':generateProto'.
> Could not resolve all files for configuration ':protobufToolsLocator_protoc'.
   > Could not find protoc-3.6.1-osx-aarch_64.exe (com.google.protobuf:protoc:3.6.1).
     Searched in the following locations:
         https://repo.maven.apache.org/maven2/com/google/protobuf/protoc/3.6.1/protoc-3.6.1-osx-aarch_64.exe

只需在工件末尾添加“:osx-x86_64”即可

之前：

protobuf {
  protoc {
    artifact = 'com.google.protobuf:protoc:3.6.1'
  }
}

之后：

protobuf {
      protoc {
        artifact = 'com.google.protobuf:protoc:3.6.1:osx-x86_64'
      }
    }