# Go SDK dependency build issues

**URL:** <https://openziti.discourse.group/t/go-sdk-dependency-build-issues/4532>\
**Category:** sdk-golang\
**Created:** [May 14, 2025, 7:49pm UTC](https://openziti.discourse.group/t/go-sdk-dependency-build-issues/4532 "2025-05-14T19:49:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sdundas](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/sdundas/32/3486_2.png) [@sdundas](https://openziti.discourse.group/u/sdundas)\
**Post date:** [May 14, 2025, 7:49pm UTC](https://openziti.discourse.group/t/go-sdk-dependency-build-issues/4532/1 "2025-05-14T19:49:17Z")

</div>

I'm attempting to use the `openziti/sdk-golang` SDK to build a Go application, somewhat similar to [example/jwtchat/jwtchat-server](https://github.com/openziti/sdk-golang/tree/c8c13278dd7f6e187232385742ebeb4337993202/example/jwtchat/jwtchat-server). When trying to build the application, the following errors occur:

```auto
RUN CGO_ENABLED=0 GOOS=linux go build -o proxy .:
22.62 # github.com/openziti/identity/engines/parsec
22.62 /go/pkg/mod/github.com/openziti/identity@v1.0.101/engines/parsec/parsec_engine.go:20:18: undefined: pfxlog.ContextLogger
23.95 # github.com/openziti/transport/v2/proxies
23.95 /go/pkg/mod/github.com/openziti/transport/v2@v2.0.171/proxies/http_connect.go:60:20: pfxlog.Logger().WithError undefined (type pfxlog.Builder has no field or method WithError)
30.89 # github.com/openziti/sdk-golang/ziti/edge/posture
30.89 /go/pkg/mod/github.com/openziti/sdk-golang@v1.1.0/ziti/edge/posture/cache.go:119:26: cannot use err (variable of type []error) as string value in argument to pfxlog.Logger().Error

```

We're using Go version 1.24.0, and the dependency is `require github.com/openziti/sdk-golang v1.1.0`, which has the following indirect dependencies (of note):

```auto
github.com/openziti/identity v1.0.101 // indirect
github.com/openziti/transport/v2 v2.0.171 // indirect

```

Any assistance would be greatly appreciated, thanks.

---

<div class="post-metadata">

**Author:** ![sdundas](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/sdundas/32/3486_2.png) [@sdundas](https://openziti.discourse.group/u/sdundas)\
**Post date:** [May 14, 2025, 8:05pm UTC](https://openziti.discourse.group/t/go-sdk-dependency-build-issues/4532/2 "2025-05-14T20:05:01Z")

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Not entirely sure what has changed, but the error has changed to:

```auto
31.67 # github.com/openziti/sdk-golang/ziti/edge
31.67 /go/pkg/mod/github.com/openziti/sdk-golang@v1.1.0/ziti/edge/channel.go:168:34: cannot use self (variable of type *DialSdkChannel) as channel.GroupedUnderlayFactory value in argument to self.constraints.Apply: *DialSdkChannel does not implement channel.GroupedUnderlayFactory (wrong type for method CreateGroupedUnderlay)
31.67 have CreateGroupedUnderlay(string, string, time.Duration) (channel.Underlay, error)
31.67 want CreateGroupedUnderlay(string, []byte, string, time.Duration) (channel.Underlay, error)
31.67 /go/pkg/mod/github.com/openziti/sdk-golang@v1.1.0/ziti/edge/channel.go:178:29: cannot use self (variable of type *DialSdkChannel) as channel.GroupedUnderlayFactory value in argument to self.constraints.Apply: *DialSdkChannel does not implement channel.GroupedUnderlayFactory (wrong type for method CreateGroupedUnderlay)
31.67 have CreateGroupedUnderlay(string, string, time.Duration) (channel.Underlay, error)
31.67 want CreateGroupedUnderlay(string, []byte, string, time.Duration) (channel.Underlay, error)

```

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<div class="post-metadata">

**Author:** ![plorenz](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/plorenz/32/54_2.png) [@plorenz](https://openziti.discourse.group/u/plorenz)\
**Post date:** [May 14, 2025, 8:16pm UTC](https://openziti.discourse.group/t/go-sdk-dependency-build-issues/4532/3 "2025-05-14T20:16:31Z")

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Hi @sdundas,  
Your errors look like they're caused by upstream version mismatches.

Make sure you're using:

```auto
github.com/michaelquigley/pfxlog v0.6.10
github.com/openziti/channel/v4 v4.0.6

```

A new version of the golang sdk should be released soon which is compatible with the latest channel release.

Paul