[Go] Genkit SDK v0.5.1 will not build against dependant otel SDK v1.35.0

[ZanzyTHEbar]

Describe the bug
Incompatible type for otel sdk in core>tracing>trace_server_exporer.go. This is caused by otel sdk v1.35.0+ deprecating instrumentation.Library in favour of instrumentation.Scope.

This causes builds to fail.

~/go/pkg/mod/github.com/firebase/genkit/go@v0.5.1/core/tracing/trace_server_exporter.go:105:51: cannot convert span.InstrumentationLibrary() (value of struct type instrumentation.Library) to type InstrumentationLibrary

To Reproduce

Deps:

• genkit/go@v0.5.1
• go.opentelemetry.io/otel/sdk@v1.35.0+

Expected behavior

I expect the code to compile.

Screenshots
If applicable, add screenshots to help explain your problem.

Runtime (please complete the following information):

• OS: Linux
• Version: Ubuntu 24.10

** Go version

• go version go1.24.1 linux/amd64

Additional context
Add any other context about the problem here.

[genesem]

Same here for: win10,
genkit/go v0.5.2
go.opentelemetry.io/otel/sdk v1.35.0

Error: github.com\firebase\genkit\go@v0.5.2\core\tracing\trace_server_exporter.go:105:51: cannot convert span.InstrumentationLibrary() (value of struct type instrumentation.Library) to type InstrumentationLibrary

Even basic get-started example won't compile.

[ZanzyTHEbar]

Same here for: win10, genkit/go v0.5.2 go.opentelemetry.io/otel/sdk v1.35.0

Error: github.com\firebase\genkit\go@v0.5.2\core\tracing\trace_server_exporter.go:105:51: cannot convert span.InstrumentationLibrary() (value of struct type instrumentation.Library) to type InstrumentationLibrary

Even basic get-started example won't compile.

I downgraded otel sdk to the last version v1.34.0.

[hugoaguirre]

Hi folks, thanks for pointing this out, we are currently working on this issue. I'll get this fixed asap 👍🏽

[timothytavarez]

@ZanzyTHEbar I can't get it to compile even after downgrading otel sdk to v1.34.0. Anything else you did?

[genesem]

Sorry for my previouse message, please disregard it..

I've found the way it builds :)

1: $ go get github.com/firebase/genkit/go
2: Removed everything else in go.mod under requre, indirect.
3:
$ go get "go.opentelemetry.io/otel@v1.29.0"
$ go get "go.opentelemetry.io/otel/sdk@v1.29.0"
`$ go mod tidy

p.s. sorry for some spam in edits..

[genesem]

After some investigation the problem is only in go.opentelemetry.io/otel/sdk the version must be 1.29.0

But "go.opentelemetry.io/otel@v1.35.0" -- works.

So:
go get "go.opentelemetry.io/otel@v1.35.0"

go get "go.opentelemetry.io/otel/sdk@v1.29.0"

[ZanzyTHEbar]

Thank you @genesem, apologies everyone.

[hugoaguirre]

Hey @ZanzyTHEbar, the issue got solved in #2825 and will be available in the next release.

I'll close this issue