未定义：grpc的支持包版本错误grpc.ServiceRegistrar

对于一个Golang开发者来说，牢固扎实的基础是十分重要的，golang学习网就来带大家一点点的掌握基础知识点。今天本篇文章带大家了解《未定义：grpc的支持包版本错误grpc.ServiceRegistrar》，主要介绍了，希望对大家的知识积累有所帮助，快点收藏起来吧，否则需要时就找不到了！

在docker内部，由于这个错误，我似乎无法编译我的grpc微服务：

step 4/9 : run make build
 ---> running in ceb6e4d0e19b
protoc --version
libprotoc 3.12.4
protoc --proto_path=pkg/proto/notify/ --go_out=pkg/proto/notify/ --go-grpc_out=pkg/proto/notify/ --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative notify.proto

plugin versions reported in *.pb.go files:
./pkg/proto/notify/notify.pb.go://  protoc-gen-go v1.25.0-devel
./pkg/proto/notify/notify.pb.go://  protoc        v3.12.4

go build -o notify-service *.go
go: downloading github.com/lib/pq v1.7.0
go: downloading google.golang.org/grpc v1.27.0
go: downloading github.com/jinzhu/gorm v1.9.14
go: downloading github.com/aws/aws-sdk-go v1.33.7
go: downloading github.com/go-kit/kit v0.10.0
go: downloading google.golang.org/protobuf v1.25.0
go: downloading github.com/go-co-op/gocron v0.2.1
go: downloading github.com/sirupsen/logrus v1.6.0
go: downloading github.com/golang/protobuf v1.4.2
go: downloading github.com/matcornic/hermes/v2 v2.1.0
go: downloading github.com/jhillyerd/enmime v0.8.1
go: downloading golang.org/x/sys v0.0.0-20200523222454-059865788121
go: downloading github.com/jaytaylor/html2text v0.0.0-20190408195923-01ec452cbe43
go: downloading github.com/vanng822/go-premailer v0.0.0-20191214114701-be27abe028fe
go: downloading github.com/imdario/mergo v0.3.9
go: downloading github.com/russross/blackfriday/v2 v2.0.1
go: downloading github.com/jinzhu/inflection v1.0.0
go: downloading github.com/masterminds/sprig v2.16.0+incompatible
go: downloading golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2
go: downloading github.com/puerkitobio/goquery v1.5.1
go: downloading github.com/pkg/errors v0.9.1
go: downloading golang.org/x/text v0.3.2
go: downloading github.com/vanng822/css v0.0.0-20190504095207-a21e860bcd04
go: downloading github.com/shurcool/sanitized_anchor_name v1.0.0
go: downloading github.com/aokoli/goutils v1.0.1
go: downloading google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013
go: downloading gopkg.in/gormigrate.v1 v1.6.0
go: downloading github.com/gorilla/css v1.0.0
go: downloading github.com/ssor/bom v0.0.0-20170718123548-6386211fdfcf
go: downloading github.com/andybalholm/cascadia v1.1.0
go: downloading github.com/gogs/chardet v0.0.0-20150115103509-2404f7772561
go: downloading golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37
go: downloading github.com/olekukonko/tablewriter v0.0.1
go: downloading github.com/cention-sany/utf7 v0.0.0-20170124080048-26cad61bd60a
go: downloading github.com/huandu/xstrings v1.2.0
go: downloading github.com/masterminds/semver v1.4.2
go: downloading github.com/google/uuid v1.1.1
go: downloading github.com/mattn/go-runewidth v0.0.4
go: downloading github.com/go-logfmt/logfmt v0.5.0
go: downloading github.com/jmespath/go-jmespath v0.3.0
# gitlab.com/kuecr/fero/backend/notify/pkg/proto/notify
pkg/proto/notify/notify_grpc.pb.go:14:11: undefined: grpc.supportpackageisversion7
pkg/proto/notify/notify_grpc.pb.go:71:30: undefined: grpc.serviceregistrar
make: *** [makefile:14: build] error 2
error: service 'notify' failed to build: the command '/bin/sh -c make build' returned a non-zero code: 2
make: *** [makefile:64: build/notify] error 1

但是，在 docker 之外，该东西可以成功运行和编译。

这是我的基础 docker 镜像：

rg go_version

from golang:${go_version}-buster

arg pb_version

run apt-get update && apt-get install -y build-essential curl git wget unzip && rm -rf /var/lib/apt/lists/*

run wget https://github.com/protocolbuffers/protobuf/releases/download/v${pb_version}/protobuf-cpp-${pb_version}.zip && \
        unzip protobuf-cpp-${pb_version}.zip && \
        cd protobuf-${pb_version} && \
        ./configure  && \
        make  && \
        make check  && \
        make install  && \
        ldconfig && \
        cd ../ && \
        rm -rf protobuf-*

run go get github.com/githubnemo/compiledaemon && \
        go get github.com/golang/protobuf/protoc-gen-go && \
        go get github.com/grpc/grpc-go/cmd/protoc-gen-go-grpc && \
        go install github.com/golang/protobuf/protoc-gen-go && \
        go install github.com/grpc/grpc-go/cmd/protoc-gen-go-grpc

这是完成编译的 docker 镜像：

from registry.gitlab.com/kuecr/devops/go-protobuf-base:1.14 as base

workdir /app

copy . .

run make build

from base as testing

entrypoint ["make", "test"]

from base as production

run make build

entrypoint compiledaemon -log-prefix=false -build="go build -o notify-service" -command="./notify-service"

我的 docker 和 docker-compose 以及 protoc 版本：

✖ docker --version && docker-compose --version
docker version 19.03.12-ce, build 48a66213fe
docker-compose version 1.26.2, build unknown
➜ protoc --version
libprotoc 3.12.4

这是我在我的机器上运行 make build 时发生的情况：

➜ make build
protoc --version
libprotoc 3.12.4
protoc --proto_path=pkg/proto/notify/ --go_out=pkg/proto/notify/ --go-grpc_out=pkg/proto/notify/ --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative notify.proto

plugin versions reported in *.pb.go files:
./pkg/proto/notify/notify.pb.go://  protoc-gen-go v1.25.0
./pkg/proto/notify/notify.pb.go://  protoc        v3.12.4

go build -o notify-service *.go

我使用的是 golang 1.15，而 docker 镜像使用的是 1.14。

解决方案

此错误的要点是用于生成代码的二进制版本与当前版本的代码不兼容。一个快速简单的解决方案是尝试将 protoc-gen-go 编译器和 grpc 库更新到最新版本。

go get -u github.com/golang/protobuf/protoc-gen-go

然后重新生成原型

heres 讨论该问题的 reddit 线程的链接

他们已经在文档 here 中提供了此解决方案。我遇到了同样的问题，这是我的解决方案：

go get -u github.com/golang/protobuf/{proto,protoc-gen-go}
go get -u google.golang.org/grpc
protoc --go_out=plugins=grpc:. *.proto

Here 是如果您不使用 go 模块的说明：

本篇关于《未定义：grpc的支持包版本错误grpc.ServiceRegistrar》的介绍就到此结束啦，但是学无止境，想要了解学习更多关于Golang的相关知识，请关注golang学习网公众号！