Question

我正在尝试构建我克隆的Android Launcher3应用程序＆＃34; git clone https://android.googlesource.com/platform/packages/apps/Launcher＆＃34;。

我在Android Studio（2.1.1）中导入了它，但它没有构建项目，并引发跟踪错误。它看起来像一些与protobuf相关的问题，但我在谷歌上几个小时后无法弄清楚。任何帮助，将不胜感激。

失败：构建因异常而失败。

出了什么问题：

Execution failed for task ':generateDebugProto'.
> protoc: stdout: . stderr: C:\Launcher3\src\main\proto: warning: directory does not exist.
C:\Launcher3\build\extracted-protos\main: warning: directory does not exist.
C:\Launcher3\build\extracted-include-protos\main: warning: directory does not exist.
C:\Launcher3\src\debug\proto: warning: directory does not exist.
C:\Launcher3\build\extracted-protos\debug: warning: directory does not exist.
C:\Launcher3\build\extracted-include-protos\debug: warning: directory does not exist.
C:\Launcher3\src\debug\proto: warning: directory does not exist.
C:\Launcher3\build\extracted-protos\debug: warning: directory does not exist.
C:\Launcher3\build\extracted-include-protos\debug: warning: directory does not exist.
backup.proto:21:8: Option "javanano_use_deprecated_package" unknown.

尝试：使用--stacktrace选项运行以获取堆栈跟踪。使用--info或--debug选项运行以获得更多日志输出。

建立失败

总时间：2.053秒

Answer 1

首先，使用已移除backup.proto

中的行的最新代码

option javanano_use_deprecated_package = true;

然后，如果您的gradle版本高于2.12且可能导致破损，则应更改

classpath 'com.google.protobuf:protobuf-gradle-plugin:0.7.0'

到

classpath 'com.google.protobuf:protobuf-gradle-plugin:0.7.7'

根据{{3}}

，build.gradle中的

2016.11.9

更新

Android Launcher3构建失败

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