title: undefined: grpc.SupportPackageIsVersion7 grpc.ServiceRegistrar
body: <p>Inside docker, it seems that I cannot compile my gRPC micro-service due to this error:</p>
  <pre><code>Step 4/9 : RUN make build
   ---&gt; 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
  </code></pre>
  <p>However, outside of Docker the thing is run and compile with success.</p>
  <p>This is my base Docker image:</p>
  <pre><code>RG go_version
  
  FROM golang:${go_version}-buster
  
  ARG pb_version
  
  RUN apt-get update &amp;&amp; apt-get install -y build-essential curl git wget unzip &amp;&amp; rm -rf /var/lib/apt/lists/*
  
  RUN wget https://github.com/protocolbuffers/protobuf/releases/download/v${pb_version}/protobuf-cpp-${pb_version}.zip &amp;&amp; \
          unzip protobuf-cpp-${pb_version}.zip &amp;&amp; \
          cd protobuf-${pb_version} &amp;&amp; \
          ./configure  &amp;&amp; \
          make  &amp;&amp; \
          make check  &amp;&amp; \
          make install  &amp;&amp; \
          ldconfig &amp;&amp; \
          cd ../ &amp;&amp; \
          rm -rf protobuf-*
  
  RUN go get github.com/githubnemo/CompileDaemon &amp;&amp; \
          go get github.com/golang/protobuf/protoc-gen-go &amp;&amp; \
          go get github.com/grpc/grpc-go/cmd/protoc-gen-go-grpc &amp;&amp; \
          go install github.com/golang/protobuf/protoc-gen-go &amp;&amp; \
          go install github.com/grpc/grpc-go/cmd/protoc-gen-go-grpc
  </code></pre>
  <p>This is the Docker image where the compilation is done:</p>
  <pre><code>FROM registry.gitlab.com/kuecr/devops/go-protobuf-base:1.14 as base
  
  WORKDIR /app
  
  COPY . .
  
  RUN make build
  
  FROM base as testing
  
  ENTRYPOINT [&quot;make&quot;, &quot;test&quot;]
  
  FROM base as production
  
  RUN make build
  
  ENTRYPOINT CompileDaemon -log-prefix=false -build=&quot;go build -o notify-service&quot; -command=&quot;./notify-service&quot;
  </code></pre>
  <p>My docker and docker-compose and protoc versions:</p>
  <pre><code>✖ docker --version &amp;&amp; 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
  </code></pre>
  <p>This is what happens when I ran <code>make build</code> on my machine:</p>
  <pre><code>➜ 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
  </code></pre>
  <p>I'm using Golang 1.15 while the Docker image use 1.14.</p>