.net9-* packages missing

[sasakrsmanovic]

Claus writes:

I quickly updated my UNO installation with uno.check and created a new UNO Platform App.
But then all the problems started...

The new project was missing dependencies all the .net9-* packages was missing and I could not reinstall them from nuget manager, they were blocked by project ?!?

---

Could you please provide any screenshots or logs attached to this thread so we can better answer it.

[ClausBarth]

This is my newly created application. I did not change anything in the setup, I just clicked create project button.
This is what I see in Visual Studio 2022 👍

I tried to see if I could download the nuget packages again, but it said that it was blocked by project?

I hope you can use this

/Claus

[jeromelaban]

Thanks for the report. It seems that your setup is not able to download any of the nuget packages used by Uno, from nuget.org.

Could you:

• Provide the logs from the Package Manager output window, after a minute of opening a solution that does not load properly?
• In a command prompt, try running dotnet build in the folder of the .sln file, and paste the result here?
• Take a look at this troubleshooting guide.

The last error about Xamarin seems to indicate that the project is referencing some very old Xamarin projects, but it's unclear why. The three suggestions above may indicate more information to troubleshoot.

[jeromelaban]

Thanks.

Answering from #20287 (comment), it looks like you have a local nuget source defined here: C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1 which points to a folder that does not exist anymore. This prevents nuget from functioning altogether.

Make sure to take a look at your nuget sources and delete the ones that are not valid anymore.

[ClausBarth]

I tried to create a Blank UNO Application with Prism and got thes errors:

[zipgenius]

Hello. Did you try to install or restore dotnet workloads?
Try to check which workloads are available with
dotnet workload list
I usually solve by typing the following:
dotnet workload restore
or
dotnet workload update
if I'm working on an app for quite some time.

[ClausBarth]

I tried the dotnet workload restore.
It ran and updated a lot.
But it did not solve the issues.

[ClausBarth]

Hi Jérôme,

Here you see my output from the package manager when opening the solution:

Failed to restore C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj (in 116 ms).
NuGet package restore failed. Please see Error List window for detailed warnings and errors.
Time Elapsed: 00:00:00.2170652
========== Finished ==========

And my output from the build:

C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO>dotnet build KlinikSystem_UNO.sln
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.
C:\Users\ClausThorBarth\source\repos\KlinikSystem_UNO\KlinikSystem_UNO\KlinikSystem_UNO.csproj : error NU1301: The local source 'C:\Users\ClausThorBarth\source\repos\ClausBarth\KlinikSystemet-WPF\packages\MaterialDesignThemes.5.2.1' doesn't exist.

Restore failed with 36 error(s) in 13,7s

I tried to install the MaterialDesignThemes package, but was not allowed to. It said that it was blocked by project