First-time installation

[taufik-rama]

Hello, I've been trying to to learn about proto serialization. I've been using protocolbuffers in my workplace & I want to know about the alternatives.

I have an issue during the installation. When I tried

$ go get capnproto.org/go/capnp/v3

I got an error

captain@glados:~$ go get capnproto.org/go/capnp/v3
cannot find package "capnproto.org/go/capnp/v3" in any of:
	/usr/local/go/src/capnproto.org/go/capnp/v3 (from $GOROOT)
	/home/captain/go/src/capnproto.org/go/capnp/v3 (from $GOPATH)

Same using GO111MODULE turned off

captain@glados:~$ GO111MODULE=off go get capnproto.org/go/capnp/v3
cannot find package "capnproto.org/go/capnp/v3" in any of:
	/usr/local/go/src/capnproto.org/go/capnp/v3 (from $GOROOT)
	/home/captain/go/src/capnproto.org/go/capnp/v3 (from $GOPATH)

My go env is

GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/captain/.cache/go-build"
GOENV="/home/captain/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/captain/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/captain/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/local/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/local/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build046804836=/tmp/go-build -gno-record-gcc-switches"

Sorry if this seems really basic, just wanted to know if there are other prerequisites/requirements for the installation

[taufik-rama]

This might be unrelated, but I also tried using the usual HTTP URL for package installation, similar to other Go's package, but the issue still persist (about the package "capnproto.org/go/capnp/v3")

captain@glados:~$ go get -x -v -u github.com/capnproto/go-capnproto2
cd /home/captain/go/src/github.com/capnproto/go-capnproto2
git config remote.origin.url
github.com/capnproto/go-capnproto2 (download)
cd /home/captain/go/src/github.com/capnproto/go-capnproto2
git pull --ff-only
cd /home/captain/go/src/github.com/capnproto/go-capnproto2
git submodule update --init --recursive
cd /home/captain/go/src/github.com/capnproto/go-capnproto2
git show-ref
cd /home/captain/go/src/github.com/capnproto/go-capnproto2
git submodule update --init --recursive
code in directory /home/captain/go/src/github.com/capnproto/go-capnproto2 expects import "capnproto.org/go/capnp/v3"

[lthibault]

@taufik-rama Which version of Go are you using? Also, can you try go get capnproto.org/go/capnp/v3 with GO111MODULE=on ?

I suspect you may have it (implicitly?) set to auto, and be attempting to go get from within your gopath, or something similar. At any rate, you'll need to use modules and you'll need to use capnproto.org/go/capnp/v3.

Let us know if the issue persists!

[taufik-rama]

Thanks! that seems to be the issue, forgot to try turning it on

Is it okay if I update the README.md regarding this? or maybe an FAQ wiki if it exists somewhere

[lthibault]

@taufik-rama Yes please! I think this should go in the "Installation" section. I'll review the PR ASAP.

Glad we got this working! 😃