objectbox go undefined: objectbox.ObjectBox

Question

I am new to GO and to objectbox. I am on Windows 10. My version of GO is

go version go1.20.1 windows/amd64

I am using Visual Studio 1.77.3

I am working through the demo at

https://golang.objectbox.io/getting-started

when I declared the import of

"github.com/objectbox/objectbox-go/objectbox"

the IDE downloaded the dependency for me.

I copy/paste the function initObjectBox as

func initObjectBox() *objectbox.ObjectBox {
    objectBox, err := objectbox.NewBuilder().Model(model.ObjectBoxModel()).Build()
    return objectBox
}

and when I am done, the IDE has underlines on objectbox.ObjectBox and objectbox.NewBuilder that says

undefined: objectbox.ObjectBox
undefined: objectbox.NewBuilder

The IDE knows about objectbox, when I shift-click the word objectbox it takes me to the import declaration in my code:

"github.com/objectbox/objectbox-go/objectbox"

When I shift-click that import it takes me to

/go/pkg/mod/github.com/objectbox/[email protected]

Thinking this must be my fault, I instead download the objectbox project

git clone https://github.com/objectbox/objectbox-go

when I open that I find

examples/tasks/main.go

which looks very much like the getting-started example. This code shows the same error for every single dot property of objectbox except objectBox.Close

undefined: objectbox.ObjectBox
undefined: objectbox.NewBuilder
undefined: objectbox.SyncIsAvailable
undefined: objectbox.SyncCredentialsNone
undefined: objectbox.SyncChange

When I try to run the app in GO I get the errors described in

https://github.com/objectbox/objectbox-go/issues/17

I have installed TDM-GCC-64 and I have run the install.ps1 script from https://golang.objectbox.io/install#windows which downloaded objectbox.dll to

C:\TDM-GCC-64\lib\objectbox.dll

The objectbox dll also got copied to my

C:\Windows\System32

I ran the tdm-gcc insaller at

https://github.com/jmeubank/tdm-gcc/releases/download/v10.3.0-tdm64-2/tdm64-gcc-10.3.0-2.exe

and my path contains

C:\TDM-GCC-64\bin

my GOPATH is

go env
set GO111MODULE=
set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\Users\Dave\AppData\Local\go-build
set GOENV=C:\Users\Dave\AppData\Roaming\go\env
set GOEXE=.exe
set GOEXPERIMENT=
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOINSECURE=
set GOMODCACHE=C:\Users\Dave\go\pkg\mod
set GONOPROXY=
set GONOSUMDB=
set GOOS=windows
set GOPATH=C:\Users\Dave\go
set GOPRIVATE=
set GOPROXY=https://proxy.golang.org,direct
set GOROOT=C:\Program Files\Go
set GOSUMDB=sum.golang.org
set GOTMPDIR=
set GOTOOLDIR=C:\Program Files\Go\pkg\tool\windows_amd64
set GOVCS=
set GOVERSION=go1.20.1
set GCCGO=gccgo
set GOAMD64=v1
set AR=ar
set CC=gcc
set CXX=g++
set CGO_ENABLED=0
set GOMOD=C:\projects\gogo\go.mod
set GOWORK=
set CGO_CFLAGS=-O2 -g
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-O2 -g
set CGO_FFLAGS=-O2 -g
set CGO_LDFLAGS=-O2 -g
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -fno-caret-diagnostics -Qunused-arguments -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=C:\Users\Dave\AppData\Local\Temp\go-build1594667240=/tmp/go-build -gno-record-gcc-switches

DavesPlanet · Accepted Answer · 2023-07-23 22:09:13Z

0

As I was preparing all the information above to create the best possible question, I wondered if the windows path addition

C:\TDM-GCC-64\bin

was updated after I started Visual Studio. I shut down Visual Studio and re-started it and opened my example project and it ran perfectly. There are no errors in the IDE and the command line ran main.go without issue. I was using the Visual Studio console to run the command line, so even the command line issues were caused by this path problem. The error messages were very un-intuitive and not previously addressed in SO.

answered Jul 23, 2023 at 22:09

DavesPlanet

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1 Comment

DavesPlanet Over a year ago

trying this all from scratch on a new computer, ran into the same error, found this post, and the path was not the problem this time. even though there was a file C:\TDM-GCC-64\lib\objectbox.dll that was not what was on the path, the install script added C:\TDM-GCC-64\bin to the path. I dropped the dll into C:\Windows\System32 as I did before and it is running. The dll not being in the path is a bug in the objectbox install.ps1 script for setting up on Windows.

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