Getting started w/Uno Platform #7867

casterle · 2022-01-19T22:56:53Z

casterle
Jan 19, 2022

TL;DR:

I'm trying Uno for the first time and need some help.

First, Uno-Check (Ver 1.0.2.0) fails as described below and may have left my Uno environment hosed as repairs seem to have failed as well.

Also, Uno-Check seems to have installed a bunch of preview sdk's that I didn't expect, including a .NET 6.0.200 preview SDK. When I'm learning something new, I prefer to avoid preview software so I can be somewhat sure that errors are mine rather than system bugs. Can I avoid preview software while writing Uno programs? I only want to target desktops...

I recently upgraded to Win11 Pro x64 (a clean install) and have finally gotten my system and programs configured and ready to start a Uno project.

Running Uno-Check leads to a series of errors as follows. After passing several initial tests, Uno-Check fails due to missing SDKs:

android-aot (Microsoft.NET.Sdk.Android.Manifest-6.0.100 : 31.0.101-preview.11.81) ios (Microsoft.NET.Sdk.iOS.Manifest-6.0.100 : 15.0.101-preview.11.391)

maccatalyst (Microsoft.NET.Sdk.MacCatalyst.Manifest-6.0.100 : 15.0.101-preview.11.391)

tvos (Microsoft.NET.Sdk.tvOS.Manifest-6.0.100 : 15.0.101-preview.11.391)

macos (Microsoft.NET.Sdk.macOS.Manifest-6.0.100 : 12.0.101-preview.11.391)

maui (Microsoft.NET.Sdk.Maui.Manifest-6.0.100 : 6.0.101-preview.10.2068)

When I tell the program to attempt to fix the issues, I get:

No workloads installed for this feature band. To update workloads installed with earlier SDK versions, include the --from-previous-sdk option.

Failed to update the advertising manifest microsoft.net.workload.emscripten: microsoft.net.workload.emscripten.manifest-6.0.200 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json, https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json, https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json, https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json, https://api.nuget.org/v3/index.json"..

Failed to update the advertising manifest microsoft.net.workload.mono.toolchain: Failed to validate package signing.

Verifying Microsoft.NET.Workload.Mono.ToolChain.Manifest-6.0.200.6.0.2-mauipre.1.22068.7error: NU3004: The package is not signed.Package signature validation failed.

Updated advertising manifest microsoft.net.sdk.tvos.Downloading microsoft.net.sdk.android.manifest-6.0.200.msi.x64 (31.0.101-preview.11.81)Workload installation failed. Rolling back installed packs...Downloading microsoft.net.sdk.android.manifest-6.0.200.msi.x64 (31.0.101-preview.11.117)Installation rollback failed: One or more errors occurred. (microsoft.net.sdk.android.manifest-6.0.200.msi.x64::31.0.101-preview.11.117 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json;https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json;https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json;https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json;https://api.nuget.org/v3/index.json".)

Workload update failed: One or more errors occurred.(microsoft.net.sdk.android.manifest-6.0.200.msi.x64::31.0.101-preview.11.81 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json;https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json;https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json;https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json;https://api.nuget.org/v3/index.json".)

Fix failed - Workload Update failed: `dotnet workload update--no-cache--disable-parallel--from-rollback-file "C:\Users\casterle\AppData\Local\Temp\maui-check-2a115ce0\workload.json"--source "https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json"--source "https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json"--source "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json"--source "https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json"--source "https://api.nuget.org/v3/index.json"`! There were one or more problems detected.Please review the errors and correct them and run uno-check again.

I'm not sure what most of these errors mean, much less how to fix them. Given the first error indicated that I was missing sdk's and suggested a fix, I inserted "--from-previous-sdk" into the options into the Uno-Check-generated command line and tried again:

The following was entered (on a single line):

dotnet workload update 
--no-cache 
--disable-parallel 
--from-previous-sdk 
--from-rollback-file "C:\Users\casterle\AppData\Local\Temp\maui-check-2a115ce0\workload.json" 
--source "https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json" 
--source "https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json" 
--source "https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json" 
--source "https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json" 
--source "https://api.nuget.org/v3/index.json"

Which resulted in:

Failed to update the advertising manifest microsoft.net.workload.emscripten: microsoft.net.workload.emscripten.manifest-6.0.200 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json, https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json, https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json, https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json, https://api.nuget.org/v3/index.json"..

Failed to update the advertising manifest microsoft.net.workload.mono.toolchain:Failed to validate package signing.

Verifying Microsoft.NET.Workload.Mono.ToolChain.Manifest-6.0.200.6.0.2-mauipre.1.22068.7error: NU3004: The package is not signed.Package signature validation failed.

Downloading microsoft.net.sdk.android.manifest-6.0.200.msi.x64 (31.0.101-preview.11.81)Workload installation failed. Rolling back installed packs...Downloading microsoft.net.sdk.android.manifest-6.0.200.msi.x64 (31.0.101-preview.11.117)Installation rollback failed: One or more errors occurred.(microsoft.net.sdk.android.manifest-6.0.200.msi.x64::31.0.101-preview.11.117 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json;https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json;https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json;https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json;https://api.nuget.org/v3/index.json".)

Workload update failed: One or more errors occurred. (microsoft.net.sdk.android.manifest-6.0.200.msi.x64::31.0.101-preview.11.81 is not found in NuGet feeds https://pkgs.dev.azure.com/xamarin/public/_packaging/maui-main/nuget/v3/index.json;https://pkgs.dev.azure.com/azure-public/vside/_packaging/xamarin-impl/nuget/v3/index.json;https://pkgs.dev.azure.com/dnceng/public/_packaging/dotnet6/nuget/v3/index.json;https://dnceng.pkgs.visualstudio.com/public/_packaging/dotnet6/nuget/v3/index.json;https://api.nuget.org/v3/index.json".)

Running Uno-Check again fails to find the sdk's it initially complained about, so adding the '--from-previous-sdk' flag didn't fix the problem.

FYI, dotnet --info reveals:

PS C:\Windows\system32> dotnet --info
.NET SDK (reflecting any global.json):
 Version:   6.0.200-preview.21617.4
 Commit:    58f9685dd5

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22000
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\6.0.200-preview.21617.4\

Host (useful for support):
  Version: 6.0.1
  Commit:  3a25a7f1cc

.NET SDKs installed:
  5.0.404 [C:\Program Files\dotnet\sdk]
  6.0.101 [C:\Program Files\dotnet\sdk]
  6.0.200-preview.21617.4 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 5.0.13 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 5.0.13 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 3.1.21 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 3.1.22 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 5.0.13 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

So it appears that Uno-Check uninstalled some components and was unable to restore them when the upgrade failed.

Can someone please help me out?

Answered by limeniye

Jan 19, 2022

Good day!
Can you try this?

#7833

View full answer

limeniye · 2022-01-19T23:36:02Z

limeniye
Jan 19, 2022

Good day!
Can you try this?

#7833

19 replies

drosenba Jan 31, 2022

I ran the uno-check with --verbose

Android Emulator Checkup...
System.NullReferenceException: Object reference not set to an instance of an object.
at DotNetCheck.AndroidSdk.AvdManager.ListAvds() in //UnoCheck/AndroidSdk/AvdManager.cs:183
at DotNetCheck.Checkups.AndroidEmulatorCheckup.Examine(SharedState history) in //UnoCheck/Checkups/
AndroidEmulatorCheckup.cs:51
at DotNetCheck.Cli.CheckCommand.ExecuteAsync(CommandContext context, CheckSettings settings) in /_/UnoCheck/
CheckCommand.cs:167

(My Android Emulator is running. On its "screen" header, it says "... - pixel_5_-api_30:5554" )

jeromelaban Jan 31, 2022
Maintainer

This last issue is going to be fixed by unoplatform/uno.check#27. If you don't have any other errors, you should be good to go.

drosenba Feb 1, 2022

I don't know what you mean by "should be good to go". Now, or after the fix?

jeromelaban Feb 1, 2022
Maintainer

If you don't have any other errors, everything else should be working.

drosenba Feb 1, 2022

I opened VS 2022 17.1.0 Preview 4.0. I create a new project "Multi-Platform App (Uno Platform|net6). I still get lots of errors and warnings, and cannot run the .Mobile project.

In the Error List, I get errors like this

Severity Code Description Project File Line Suppression State

Error NU1012 Platform version is not present for one or more target frameworks, even though they have specified a platform: net6.0-macos UnoPreviewTest1.Mobile C:\Users\dennis\source\repos\UnoPreviewTest1\UnoPreviewTest1\UnoPreviewTest1.Mobile\UnoPreviewTest1.Mobile.csproj 1

Error XA1018 Specified AndroidManifest file does not exist: C:\Users\dennis\source\repos\UnoPreviewTest1\UnoPreviewTest1\UnoPreviewTest1.Mobile\AndroidManifest.xml. UnoPreviewTest1.Mobile C:\Program Files\dotnet\packs\Microsoft.Android.Sdk.Windows\31.0.200-preview.12.2\tools\Xamarin.Android.Common.targets 515

When I build, the Output tab's "Show output from" Build, shows many errors like this
3>CSC : error CS2015: 'C:\Users\dennis.nuget\packages\uno.ui\4.0.11\analyzers\dotnet\cs\Mono.Cecil.Mdb.dll' is a binary file instead of a text file

Also, in the Output tab's from "Uno Platform", I see this
[ERROR] The operation failed as details for project UnoPreviewTest1.Skia.Gtk could not be loaded.

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Getting started w/Uno Platform #7867

casterle Jan 19, 2022

Replies: 1 comment · 19 replies

limeniye Jan 19, 2022

drosenba Jan 31, 2022

jeromelaban Jan 31, 2022 Maintainer

drosenba Feb 1, 2022

jeromelaban Feb 1, 2022 Maintainer

drosenba Feb 1, 2022

casterle
Jan 19, 2022

Replies: 1 comment 19 replies

limeniye
Jan 19, 2022

jeromelaban Jan 31, 2022
Maintainer

jeromelaban Feb 1, 2022
Maintainer