5,451 questions
Problem targeting Linux and MacOS with .NET 6 and Visual Studio 2022
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(294.40000000000003, 15%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERR%3C/text%3E%3C/svg%3E)
Richard Rosenheim
86
Reputation points
I wrote a basic .NET 6 console app. It works fine under Windows. But, when I specify MacOS as the target OS in Visual Studio 2022 under Properties, I get these error messages when I attempt to build/publish:
Error NU1012 Platform version is not present for one or more target frameworks, even though they have specified a platform: net6.0-macos Text2Folders D:\Projects\myTestApp\myTestApp.csproj 1
Error NETSDK1147 To build this project, the following workloads must be installed: macos
To install these workloads, run the following command: dotnet workload restore Text2Folders C:\Program Files\dotnet\sdk\6.0.400\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.ImportWorkloads.targets 38
I attempted to run the "dotnet workload restore" command, but that only gave me these error messages:
Installing workloads: macos
Advertising manifest not updated. Manifest package for microsoft.net.sdk.android doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.sdk.ios doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.sdk.maccatalyst doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.sdk.macos doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.sdk.maui doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.sdk.tvos doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.workload.mono.toolchain doesn't exist.
Advertising manifest not updated. Manifest package for microsoft.net.workload.emscripten doesn't exist.
Downloading Microsoft.macOS.Sdk.Msi.x64 (12.3.446-ci.-release-6-0-4xx.446)
Workload installation failed. Rolling back installed packs...
Workload installation failed: One or more errors occurred. (microsoft.macos.sdk.msi.x64::12.3.446-ci.-release-6-0-4xx.446 is not found in NuGet feeds C:\Program Files (x86)\Microsoft SDKs\NuGetPackages\".)
I also get the same error messages when I attempt to specify Linux as well.
Anyone have any suggestions on how I can resolve these issues?
Thanks in advance.
Developer technologies Visual Studio Other
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David Lowndes 4,726 Reputation points2022-09-03T22:03:41.577+00:00 FWIW I've just tried this scenario using the latest 17.4.0 Preview 1, and the "dotnet workload restore" command worked for me.
Installing workloads: macos
Failed to update the advertising manifest microsoft.net.sdk.maccatalyst: ...
...
Downloading microsoft.net.sdk.ios.manifest-6.0.400.msi.x64 (15.4.447)
Installing Microsoft.NET.Sdk.iOS.Manifest-6.0.400.15.4.447-x64.msi ..... Done
...
Downloading Microsoft.NET.Runtime.MonoTargets.Sdk.Msi.x64 (6.0.8)
Installing Microsoft.MonoTargets.Sdk.6.0.8-x64.msi ..... DoneSuccessfully installed workload(s) macos.
I subsequently closed and restarted VS for it to succeed in building for macOS.
Build started...
------ Build started: Project: c6Test, Configuration: Debug Any CPU ------
c6Test -> C:\Users\David\Source\Repos\c6Test\bin\Debug\net6.0-macos\osx-x64\c6Test.dll -
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(249.60000000000002, 10%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAX%3C/text%3E%3C/svg%3E)
Anna Xiu-MSFT 31,056 Reputation points Microsoft External Staff2022-09-06T04:52:51.077+00:00 Hello, you can try to run the "dotnet workload install macos" command.
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