Grpc-gateway: google/protobuf/descriptor.proto: File not found

[jwalters-gpsw]

When trying to compile the proto file for https://github.com/philips/grpc-gateway-example/tree/master/echopb

get the error: google/protobuf/descriptor.proto: File not found

Either don't have the right descriptor.proto installed, or something about protoc args need to be changed. Any ideas?

Both
./github.com/googleapis/googleapis/third_party/nanopb/generator/proto/google/protobuf/descriptor.proto
and
./github.com/googleapis/googleapis/third_party/protobuf/src/google/protobuf/descriptor.proto

are in my $GOPATH/src

Golang: 1.8.3
OS: darwin

Makefile:

protoc -I/usr/local/include -I. \
        -I${GOPATH}/src \
        -I${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
        --go_out=google/api/annotations.proto=github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api,plugins=grpc:. \
        service.proto

$ make
protoc -I/usr/local/include -I. \
        -I/Users/jwalters/go/src \
        -I/Users/jwalters/go/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
        --go_out=google/api/annotations.proto=github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api,plugins=grpc:. \
        service.proto
google/protobuf/descriptor.proto: File not found.
google/api/annotations.proto: Import "google/protobuf/descriptor.proto" was not found or had errors.
google/api/annotations.proto:28:8: "google.protobuf.MethodOptions" is not defined.
service.proto: Import "google/api/annotations.proto" was not found or had errors.
make: *** [all] Error 1

[AlekSi]

That's the problem with include directories. Do you have /usr/local/include/google/protobuf directory? Did you run protobuf's make install?

[upeediak]

As AlekSi mentioned, it is missing includes. If you downloaded and extracted the protoc-xyz-os-....zip file, there should be an include folder. Make sure you move the content of that folder to somewhere under your PATH (eg: /usr/local/include/)

[achew22]

If you continue having issues please reopen or file a new issue.

[lei314121077]

I also encountered the same problem！
Does anyone know how to solve it?

google/protobuf/descriptor.proto: File not found. google/api/annotations.proto: Import "google/protobuf/descriptor.proto" was not found or had errors. google/api/annotations.proto:28:8: "google.protobuf.MethodOptions" is not defined. threeapipb.proto: Import "google/api/annotations.proto" was not found or had errors.
your need install protobuf 3 on your system

Make sure you grab the latest version

curl -OL https://github.com/google/protobuf/releases/download/v3.2.0/protoc-3.2.0-linux-x86_64.zip

Unzip

unzip protoc-3.2.0-linux-x86_64.zip -d protoc3

Move protoc to /usr/local/bin/

sudo mv protoc3/bin/* /usr/local/bin/

Move protoc3/include to /usr/local/include/

sudo mv protoc3/include/* /usr/local/include/

Optional: change owner

sudo chown [user] /usr/local/bin/protoc
sudo chown -R [user] /usr/local/include/google
``

[oseiskar]

Encountered this issue and solved it on Debian Stretch Linux by installing libprotobuf-dev and libprotoc-dev packages (not sure which one was needed or both).

This was in a different context not related to grpc-gateway but googling the error brought me and hence this seems like the best forum for sharing this solution.

[rafee]

Encountered this issue and solved it on Debian Stretch Linux by installing libprotobuf-dev and libprotoc-dev packages (not sure which one was needed or both).

This was in a different context not related to grpc-gateway but googling the error brought me and hence this seems like the best forum for sharing this solution.

This solved my issue by installing libprotobuf-dev

[lookbackagain]

At window10, '/usr/local/include/' shoud replace with what your download protobuf path

[gaoshanyu]

Does any one meet the same error on macOS? I've installed protobuf via brew install protobuf already.

➜  ~ brew info protobuf                                 
protobuf: stable 3.11.0 (bottled), HEAD
Protocol buffers (Google's data interchange format)
https://github.com/protocolbuffers/protobuf/
/usr/local/Cellar/protobuf/3.6.1 (256 files, 17.2MB) *
  Poured from bottle on 2018-11-03 at 19:07:25
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/protobuf.rb
==> Dependencies
Build: autoconf ✔, automake ✔, libtool ✔, python ✔
==> Options
--HEAD
    Install HEAD version
==> Analytics
install: 41,926 (30 days), 140,726 (90 days), 455,949 (365 days)
install-on-request: 18,303 (30 days), 61,550 (90 days), 207,336 (365 days)
build-error: 0 (30 days)

[gaoshanyu]

Still get this error after upgrade protobuf.

➜  ~ brew info protobuf   
protobuf: stable 3.11.0 (bottled), HEAD
Protocol buffers (Google's data interchange format)
https://github.com/protocolbuffers/protobuf/
/usr/local/Cellar/protobuf/3.11.0 (268 files, 19.5MB) *
  Poured from bottle on 2020-01-14 at 11:59:20
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/protobuf.rb
==> Dependencies
Build: autoconf ✔, automake ✔, libtool ✔, python ✔
==> Options
--HEAD
    Install HEAD version
==> Analytics
install: 41,926 (30 days), 140,726 (90 days), 455,949 (365 days)
install-on-request: 18,303 (30 days), 61,550 (90 days), 207,336 (365 days)
build-error: 0 (30 days)

[johanbrandhorst]

Hi, this isn't an issue with the gRPC-gateway, so please try to find help elsewhere. The error implies that you have an incorrect protobuf installation. Perhaps raise the issue with the package maintainers?

[chengyayu]

Does any one meet the same error on macOS? I've installed protobuf via brew install protobuf already.

➜  ~ brew info protobuf                                 
protobuf: stable 3.11.0 (bottled), HEAD
Protocol buffers (Google's data interchange format)
https://github.com/protocolbuffers/protobuf/
/usr/local/Cellar/protobuf/3.6.1 (256 files, 17.2MB) *
  Poured from bottle on 2018-11-03 at 19:07:25
From: https://github.com/Homebrew/homebrew-core/blob/master/Formula/protobuf.rb
==> Dependencies
Build: autoconf ✔, automake ✔, libtool ✔, python ✔
==> Options
--HEAD
  Install HEAD version
==> Analytics
install: 41,926 (30 days), 140,726 (90 days), 455,949 (365 days)
install-on-request: 18,303 (30 days), 61,550 (90 days), 207,336 (365 days)
build-error: 0 (30 days)

Has the problem been solved? I encountered the same problem.