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Fails to install Microsoft.Maui.Templates

See original GitHub issue

I’m trying to follow the guide found here to play around with Maui.

The first time I run the maui-check tool, it installed a few things, but I couldn’t get my example to run. So I tried running the tool again, and it said “Microsoft.Maui.Templates” was missing and it tried to re-install it, but it doesn’t seem to be able to. It doesn’t log what goes wrong, it just doesn’t find it on the next run. I don’t find it in my packs folder either.

The output from a run (maui-check -dnf) is:

` _ _ _____ _____ __ __ _ _ _ ___
| \ | | | | | | | / | / \ | | | | | |
| | | | | | | | |/| | / _ \ | | | | | |
_ | |\ | | | | | | | | | / ___ \ | || | | |
() || _| |_____| || || || // _\ _/ ||

¤ .NET MAUI Check ¤ ──────────────────────────────────────────────────────────────────────────────── This tool will attempt to evaluate your .NET MAUI development environment. If problems are detected, this tool may offer the option to try and fix them for you, or suggest a way to fix them yourself.

Thanks for choosing .NET MAUI! ──────────────────────────────────────────────────────────────────────────────── » Synchronizing configuration… ok » Scheduling appointments… ok

OpenJDK 1.8.0-1 Checkup…

1.8.0-25 (C:\Program Files\Android\Jdk\microsoft_dist_openjdk_1.8.0.25\bin..)

Visual Studio 16.9.0 Checkup…

16.10.0-pre.1.0 - C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview
16.8.4

Android SDK Checkup…

emulator (30.5.4)
build-tools;30.0.2 (30.0.2)
platforms;android-30 (3)
system-images;android-30;google_apis;x86 (9)
platform-tools (31.0.1)

Android Emulator Checkup…

Emulator: Android_Accelerated_x86_Oreo found.

.NET SDK Checkup…

2.1.201 - C:\Program Files\dotnet\sdk\2.1.201
2.1.202 - C:\Program Files\dotnet\sdk\2.1.202
2.1.300-preview1-008174 - C:\Program Files\dotnet\sdk\2.1.300-preview1-008174
2.1.301 - C:\Program Files\dotnet\sdk\2.1.301
2.1.400 - C:\Program Files\dotnet\sdk\2.1.400
2.1.401 - C:\Program Files\dotnet\sdk\2.1.401
2.1.402 - C:\Program Files\dotnet\sdk\2.1.402
2.1.403 - C:\Program Files\dotnet\sdk\2.1.403
2.1.523 - C:\Program Files\dotnet\sdk\2.1.523
2.1.600-preview-009472 - C:\Program Files\dotnet\sdk\2.1.600-preview-009472
2.1.600 - C:\Program Files\dotnet\sdk\2.1.600
2.1.601 - C:\Program Files\dotnet\sdk\2.1.601
2.1.617 - C:\Program Files\dotnet\sdk\2.1.617
2.1.700 - C:\Program Files\dotnet\sdk\2.1.700
2.1.800-preview-009677 - C:\Program Files\dotnet\sdk\2.1.800-preview-009677
2.1.815 - C:\Program Files\dotnet\sdk\2.1.815
2.2.101 - C:\Program Files\dotnet\sdk\2.2.101
2.2.104 - C:\Program Files\dotnet\sdk\2.2.104
2.2.107 - C:\Program Files\dotnet\sdk\2.2.107
2.2.108 - C:\Program Files\dotnet\sdk\2.2.108
2.2.200-preview-009648 - C:\Program Files\dotnet\sdk\2.2.200-preview-009648
2.2.200-preview-009748 - C:\Program Files\dotnet\sdk\2.2.200-preview-009748
2.2.200 - C:\Program Files\dotnet\sdk\2.2.200
2.2.201 - C:\Program Files\dotnet\sdk\2.2.201
2.2.202 - C:\Program Files\dotnet\sdk\2.2.202
2.2.300 - C:\Program Files\dotnet\sdk\2.2.300
2.2.400-preview-010195 - C:\Program Files\dotnet\sdk\2.2.400-preview-010195
2.2.401 - C:\Program Files\dotnet\sdk\2.2.401
3.0.100 - C:\Program Files\dotnet\sdk\3.0.100
3.1.113 - C:\Program Files\dotnet\sdk\3.1.113
3.1.201 - C:\Program Files\dotnet\sdk\3.1.201
3.1.300 - C:\Program Files\dotnet\sdk\3.1.300
5.0.102 - C:\Program Files\dotnet\sdk\5.0.102
5.0.104 - C:\Program Files\dotnet\sdk\5.0.104
5.0.200-preview.21077.7 - C:\Program Files\dotnet\sdk\5.0.200-preview.21077.7
6.0.100-preview.3.21202.5 - C:\Program Files\dotnet\sdk\6.0.100-preview.3.21202.5

.NET SDK - EnableWorkloadResolver.sentinel Checkup…

C:\Program Files (x86)\Microsoft Visual Studio\2019\Preview\MSBuild\Current\Bin\SdkResolvers\Microsoft.DotNet.MSBuildSdk Resolver\EnableWorkloadResolver.sentinel exists.
C:\Program Files\dotnet\sdk\6.0.100-preview.3.21202.5\EnableWorkloadResolver.sentinel exists.

.NET SDK - Workloads (6.0.100-preview.3.21202.5) Checkup…

microsoft-android-sdk-full (Microsoft.NET.Workload.Android : 11.0.200-preview.3.196) installed.
microsoft-ios-sdk-full (Microsoft.NET.Workload.iOS : 14.4.100-preview.3.1326) installed.
microsoft-maccatalyst-sdk-full (Microsoft.NET.Workload.MacCatalyst : 14.3.100-preview.3.471) installed.
microsoft-tvos-sdk-full (Microsoft.NET.Workload.tvOS : 14.3.100-preview.3.1379) installed.
microsoft-macos-sdk-full (Microsoft.NET.Workload.macOS : 11.1.100-preview.3.1379) installed.

.NET SDK - Packs (6.0.100-preview.3.21202.5) Checkup… ¡ Microsoft.Maui.Templates (6.0.100-preview.3.322) not installed.

Microsoft.iOS.Windows.Sdk (14.4.100-preview.3.1326) installed.
Microsoft.Android.Sdk (11.0.200-preview.3.196) installed.
Microsoft.Android.Sdk.BundleTool (11.0.200-preview.3.196) installed.
Microsoft.Android.Ref (11.0.200-preview.3.196) installed.
Microsoft.Android.Templates (11.0.200-preview.3.196) installed.
Microsoft.iOS.Sdk (14.4.100-preview.3.1326) installed.
Microsoft.iOS.Ref (14.4.100-preview.3.1326) installed.
Microsoft.iOS.Templates (14.4.100-preview.3.1326) installed.
Microsoft.MacCatalyst.Sdk (14.3.100-preview.3.471) installed.
Microsoft.MacCatalyst.Ref (14.3.100-preview.3.471) installed.
Microsoft.MacCatalyst.Templates (14.3.100-preview.3.471) installed.
Microsoft.tvOS.Sdk (14.3.100-preview.3.1379) installed.
Microsoft.tvOS.Ref (14.3.100-preview.3.1379) installed.
Microsoft.tvOS.Templates (14.3.100-preview.3.1379) installed.
Microsoft.macOS.Sdk (11.1.100-preview.3.1379) installed.
Microsoft.macOS.Ref (11.1.100-preview.3.1379) installed.
Microsoft.macOS.Templates (11.1.100-preview.3.1379) installed.

──────────────────────────────────────────────────────────────────────────────── ¤ Recommendation: Install Missing SDK Packs ────────────────────────────────────────────────────────────────────────────────

» Attempting to fix: .NET SDK - Packs (6.0.100-preview.3.21202.5) Installing Pack: Microsoft.Maui.Templates… Installed Pack: Microsoft.Maui.Templates. Fix applied. Checking again…

.NET SDK - Packs (6.0.100-preview.3.21202.5) Checkup… ¡ Microsoft.Maui.Templates (6.0.100-preview.3.322) not installed.

Microsoft.iOS.Windows.Sdk (14.4.100-preview.3.1326) installed.
Microsoft.Android.Sdk (11.0.200-preview.3.196) installed.
Microsoft.Android.Sdk.BundleTool (11.0.200-preview.3.196) installed.
Microsoft.Android.Ref (11.0.200-preview.3.196) installed.
Microsoft.Android.Templates (11.0.200-preview.3.196) installed.
Microsoft.iOS.Sdk (14.4.100-preview.3.1326) installed.
Microsoft.iOS.Ref (14.4.100-preview.3.1326) installed.
Microsoft.iOS.Templates (14.4.100-preview.3.1326) installed.
Microsoft.MacCatalyst.Sdk (14.3.100-preview.3.471) installed.
Microsoft.MacCatalyst.Ref (14.3.100-preview.3.471) installed.
Microsoft.MacCatalyst.Templates (14.3.100-preview.3.471) installed.
Microsoft.tvOS.Sdk (14.3.100-preview.3.1379) installed.
Microsoft.tvOS.Ref (14.3.100-preview.3.1379) installed.
Microsoft.tvOS.Templates (14.3.100-preview.3.1379) installed.
Microsoft.macOS.Sdk (11.1.100-preview.3.1379) installed.
Microsoft.macOS.Ref (11.1.100-preview.3.1379) installed.
Microsoft.macOS.Templates (11.1.100-preview.3.1379) installed.

────────────────────────────────────────────────────────────────────────────────

! There were one or more problems detected. Please review the errors and correct them and run maui-check again. `

I’ve tried the --verbose flag without getting any more information about why it fails. Installation of the pack obviously fails somehow - how can I find out what went wrong?