英文:
Cannot find package "google/protobuf"
问题
我正在编译一个用Go语言编写的开源项目（openblockchain）。当我执行go build时，出现以下错误。有人可以帮我解决这个问题吗？
编译错误
> go build
../go/src/github.com/openblockchain/obc-peer/openchain/util/utils.go:28:2: 找不到包“google/protobuf”，可能的位置有：
/usr/src/pkg/google/protobuf（来自$GOROOT）
/home/vichu/go/src/google/protobuf（来自$GOPATH）
附加信息
我在Stack Overflow上参考了这里的问题，但仍然没有解决这个问题。以下是我拥有的一些更多信息：
Protoc版本是最新的。
> protoc --version
libprotoc 3.0.0
我的环境变量
> echo $GOPATH
/home/vichu/go
> echo $GOBIN
/home/vichu/go/bin
Protobuf已经使用README构建。
~/go/src/github.com/golang/protobuf$ ls
AUTHORS CONTRIBUTORS jsonpb LICENSE Makefile Make.protobuf proto protoc-gen-go proto.pb.go ptypes README.md
更新
我按照答案中提到的，在源代码的Util.go中进行了以下更改。
源代码是开源的，这是链接
- gp "google/protobuf"
+ gp "github.com/google/protobuf"
当我执行go get时，出现以下错误
> go get github.com/google/protobuf
无法加载包：包github.com/google/protobuf中没有可构建的Go源文件，位于/home/vichu/go/src/github.com/google/protobuf
英文:
I am compiling an open source project written in go (openblockchain). I get the following error when I do go build. Can anyone help me with this issue
Compilation Error
> go build
../go/src/github.com/openblockchain/obc-peer/openchain/util/utils.go:28:2: cannot find package "google/protobuf" in any of:
/usr/src/pkg/google/protobuf (from $GOROOT)
/home/vichu/go/src/google/protobuf (from $GOPATH)
Additional Information
I referred the question here in Stack Overflow but still no luck in solving the issue. Here is some more information about what all I have:
Protoc version is up to date.
> protoc --version
libprotoc 3.0.0
My environment variables
> echo $GOPATH
/home/vichu/go
> echo $GOBIN
/home/vichu/go/bin
Protobuf has been built using the README.
~/go/src/github.com/golang/protobuf$ ls
AUTHORS CONTRIBUTORS jsonpb LICENSE Makefile Make.protobuf proto protoc-gen-go proto.pb.go ptypes README.md
Update
I did the following Util.go in source code as mentioned in answer.
The source code is open source and here is the link
- gp "google/protobuf"
+ gp "github.com/google/protobuf"
When I do go get, the below is the error
> go get github.com/google/protobuf
can't load package: package github.com/google/protobuf: no buildable Go source files in /home/vichu/go/src/github.com/google/protobuf
答案1
得分: 4
首先，你的导入语句是错误的，你试图导入一个 C++ 包，而不是一个 Golang 包。正确的导入语句应该是：
import "github.com/golang/protobuf/proto"
如果你还没有安装这个包，你需要在命令行中运行以下命令来安装：
go get github.com/golang/protobuf/proto
英文:
Firstly, your import is wrong, you are trying to import a C++ package, not a golang package. It needs to be:
import ("github.com/golang/protobuf/proto")
If you don't have this package installed already, you need to run from command line:
go get github.com/golang/protobuf/proto
答案2
得分: 0
我认为，在您的*.pb.go文件的末尾，您也没有类似于"gzipped FileDescriptorProto 0x1f, 0x8b, 0x08, 0x00 ...."的内容。
问题是我们使用了错误的编译器进行生成。
所以：
1）我重新安装了protobuf，下载链接为：
https://github.com/google/protobuf/releases
2）然后（我使用的是Ubuntu，它也有一个proto编译器）：
apt remove protobuf-compiler
重新构建*.proto文件。这样可以修复该错误。
英文:
I think, at the end of your *.pb.go file you also do not have some thing like "gzipped FileDescriptorProto
0x1f, 0x8b, 0x08, 0x00 ...."
The issue is we use a wrong compiler for generating.
So:
-
I reinstall protobuf from:
https://github.com/google/protobuf/releases -
Then (I'm using ubuntu and it has a proto compiler also):
apt remove protobuf-compiler
Rebuild the *.proto file. It fixed the bug.
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