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Developer technologies | .NET | .NET MAUI
A Microsoft open-source framework for building native device applications spanning mobile, tablet, and desktop.
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Hello Kim,
It seems that the installation is either incomplete or corrupted, which may be causing the components to not connect properly.
First, let's check what's actually installed on your machine.
Please note that these commands are meant to run one at a time in PowerShell.
Open PowerShell and run these commands to see what's really on your system:
dotnet --list-sdks
dotnet --list-runtimes
dotnet workload list
If you get an error saying dotnet isn't recognized, that confirms the SDK isn't properly installed or registered on your machine.
Next, try repairing the workload installation
Close Visual Studio completely, then open PowerShell as administrator and run:
dotnet nuget locals all --clear
dotnet workload repair
If the repair doesn't work, you can remove and reinstall the MAUI workload:
dotnet workload uninstall maui
dotnet workload install maui
Clean up Visual Studio's cache
While Visual Studio's closed, delete these folders:
Remove-Item -Path "$env:LOCALAPPDATA\Microsoft\VisualStudio\17.0_*\ComponentModelCache" -Recurse -Force -ErrorAction SilentlyContinue
Remove-Item -Path "$env:LOCALAPPDATA\Temp\.net" -Recurse -Force -ErrorAction SilentlyContinue
Run the Visual Studio cleanup tool
"C:\Program Files (x86)\Microsoft Visual Studio\Installer\InstallCleanup.exe"
Repair Visual Studio itself
After running the cleanup tool:
- Open Visual Studio Installer
- Click the dropdown next to your Visual Studio 2022 Community installation
- Select "Repair"
- Let it complete and restart your machine
One more thing to check
Look in your solution folder for a file called global.json. If it exists, open it and check if it specifies a .NET SDK version you don't have installed. You can either delete this file or update it to match your installed SDK version.
After trying these steps, please let me know what happens. If you're still seeing the error, I'd like to see the output from those dotnet --list commands to help figure out what's missing.