I cant build sources

[PiotrZychski]

I get last version of source files. Start VS 2022 and i have 231 errors
Severity Code Description Project File Line Suppression State Details
Error (active) NETSDK1202 The workload 'net6.0-android' is out of support and will not receive security updates in the future. Please refer to https://aka.ms/maui-support-policy for more information about the support policy. UsbSerialExampleApp, UsbSerialForAndroid (net6.0-android) C:\Program Files\dotnet\sdk\8.0.303\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.EolTargetFrameworks.targets 38

Severity Code Description Project File Line Suppression State Details
Error (active) MSB4044 The "GenerateResourceDesigner" task was not given a value for the required parameter "JavaPlatformJarPath". UsbSerialForAndroid (monoandroid5.0) C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Xamarin\Android\Xamarin.Android.Common.targets 1045

Severity Code Description Project File Line Suppression State Details
Error (active) XA5207 Could not find android.jar for API level 21. This means the Android SDK platform for API level 21 is not installed. Either install it in the Android SDK Manager (Tools > Android > Android SDK Manager...), or change the Xamarin.Android project to target an API version that is installed. (C:\Program Files (x86)\Android\android-sdk\platforms\android-21\android.jar missing.) UsbSerialForAndroid (monoandroid5.0) C:\Program Files\Microsoft Visual Studio\2022\Community\MSBuild\Xamarin\Android\Xamarin.Android.Tooling.targets 100

etc...