Hello,
Preview version is not supported on Q&A. It's suggested that you use the latest release VS(17.3.3)
About this SDK issue, you could follow the progress at Workload installation failed: microsoft.android.sdk.windows::34.0.64 is not found in NuGet feeds https://api.nuget.org/v3/index.json" · Issue #37580 · dotnet/sdk
Best Regards,
Wenyan Zhang
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