.NET iOS Service Extension is only built locally, not on Mac Build Host

[remokeitel]

Apple platform

iOS

Framework version

net9.0-*

Affected platform version

VS 2022 17.14.26, VS 2026 18.3.0

Description

Until I built my iOS app + extension with VS 2022 17.14.25, the extension was successfully built on the Mac Build Host.
Since the latest VS updates, the extension is only built locally. Because of that, the app build fails, because it cannot find the extension build directory on the Mac. It makes no difference if workload 9.0.308.2 or 9.0.311 is used.

Steps to Reproduce

self-explanatory

Did you find any workaround?

Rollback to VS 2022 17.14.25

Build logs

No response

[rolfbjarne]

Can you try setting this property in the app extension project to see if that works?

<PropertyGroup>
    <BuildBindingProjectLocally>false</BuildBindingProjectLocally>
</PropertyGroup>

[dotnet-policy-service]

Hi @@remokeitel. We have added the "need-info" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.