Protobuf3: How to use the new timestamp proto type?

[Robin]

Hi everyone,

I have installed protobuf3.0.0-alpha-3 on my machine and have the following proto file:

syntax = "proto3";

package my.great.package;

import "google/protobuf/timestamp.proto";

option java_outer_classname = "TimestampedThingMsg";

message TimestampedThing {

    

    string thing = 1;

    Timestamp date = 2;

    

}

However when I run "protoc protobuf/timestamped_thing.proto" I get the following two errors:

protobuf/timestamped_thing.proto: Import "google/protobuf/timestamp.proto" was not found or had errors.

protobuf/timestamped_thing.proto:15:5: "Timestamp" is not defined.

How can I import the new Timestamp message type (source file: https://github.com/google/protobuf/blob/master/src/google/protobuf/timestamp.proto) to use it in my own messages?

The only related example I could find in the docs was for the Any type where the import looks exactly like mine so not sure how to go about this. Docs link: https://developers.google.com/protocol-buffers/docs/proto3#any

Thanks!

[肖锋]

On Thursday, June 11, 2015 at 6:08:33 PM UTC-7, Robin wrote:

Hi everyone,

I have installed protobuf3.0.0-alpha-3 on my machine and have the following proto file:

syntax = "proto3";

package my.great.package;

import "google/protobuf/timestamp.proto";

option java_outer_classname = "TimestampedThingMsg";

message TimestampedThing {

    

    string thing = 1;

    Timestamp date = 2;

    

}

However when I run "protoc protobuf/timestamped_thing.proto" I get the following two errors:

protobuf/timestamped_thing.proto: Import "google/protobuf/timestamp.proto" was not found or had errors.

protobuf/timestamped_thing.proto:15:5: "Timestamp" is not defined.

protoc should be able to find these types automatically if they are installed with protoc. Where did you install the protoc binary? Could you check whether you can find google/protobuf/timestamp.proto in your include path? These protos should be installed along with protobuf header files.

[Robin]

I installed protobuf with the following homebrew command on OS X 10.10.3: brew install protobuf --devel

The binary is symlinked to /us/local/bin and the includes are symlinked to /usr/local/include/google/protobuf/timestamp.proto (which is present as I confirmed).

Which include path do you mean, the protoc -IPATH? And should it be sufficient in my .proto file to just use Timestamp or should I use the full google.protobuf.Timestamp?

[Nathaniel Weems]

Using the fully qualified path "google.protobuf.Timestamp" works.

[Camilo Aguilar]

Importing the definitions AND using the fully qualified path of the type fixed it for me.  Thanks!

[Camilo Aguilar]

I'm also  unable to use the Timestamp type, using the fully qualified path didn't seem to work for me. 

On Friday, May 6, 2016 at 8:00:26 PM UTC-4, Nathaniel Weems wrote:

[Chad Beaulac]

A buildable solution is in my post here:

https://groups.google.com/d/msg/protobuf/ecxdP_mN8OI/3FxhjiDaAQAJ

Importing and fully qualified name worked for me.

[Andrés Castaño]

Hello all, I had the same issue when generating protos that contain Timestamp in Debian.

I got it working following this instructions:

https://gist.github.com/sofyanhadia/37787e5ed098c97919b8c593f0ec44d8

Please note my comment about creating a symlink instead of moving the binary.