You were trying to access those .proto from raw source code, what you need
is downloading/installing protobuf compiler (protoc), Please see official
github installation instruction
(https://github.com/protocolbuffers/protobuf/blob/master/src/README.md). If
you are on Visual Studio on Windows, you can also just download the
Google.Protobuf.Tools nuget pacakge. The package is then bootstrapp as the
following structures:
For this example, ".../package" is where the protobuf compiler and its
resources are bootstrapped.
.../package/protoc
.../package/google/protobuf/*.proto <---these are all the well known types
in your protoc generation argument, you will then add "-I=.../package" to
instruct protoc where to search for .proto
if you have a test.proto file that has *import google/protobuf/any.proto
in it. and test.proto resides in .../src, *the protoc generation will look
something like this
*protoc test.proto -I=<absolute path of .../src> -I=<absolute path of
.../package> <and the rest is your platform specific flags>*
On Wednesday, November 28, 2018 at 2:15:44 AM UTC-8, Jean-Philippe Ouellet
wrote:
>
> Hello,
>
> tl;dr - What is the correct way to make well-known types available to
> protoc when targeting Go?
>
> In the protobuf documentation [1], well-known types are imported with
> proto package path "google/protobuf/[...].proto".
>
> In order for protoc to find such files, it is my understanding that they
> must be available within a "google/protobuf" subdir of a provided import
> path (protoc -I vendor/[...]).
>
> However, github.com/golang/protobuf provides these files only under a
> "ptypes/protobuf" directory, which can not be successfully pointed to by
> protoc ("ptypes" != "google", import fails with not found).
>
> They are available under google/protobuf within
> github.com/protocolbuffers/protobuf/src and
> github.com/googleapis/googleapis, among other places, but these are full
> of other extraneous files.
>
> I could also play games with protoc arguments like
> `Mgoogle/protobuf/timestamp.proto=
> github.com/golang/protobuf/ptypes/protobuf/timestamp`
> <http://github.com/golang/protobuf/ptypes/protobuf/timestamp> to remap
> every path from google to ptypes, but this most definitely seems wrong...
>
> Any hints appreciated.
>
> Thanks,
> Jean-Philippe
>
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