viewmodel ins wpf gepackt, build failed

DaSaSo.Wpf/ViewModel/Commands/AddClientCommand.cs

@@ -0,0 +1,32 @@
+using DaSaSo.Domain.Model;
+using DaSaSo.Domain.Services;
+using DaSaSo.Wpf.ViewModel.Interface;
+using System.Threading.Tasks;
+
+namespace DaSaSo.Wpf.ViewModel.Commands
+{
+    public class AddClientCommand : AsyncCommandBase
+    {
+        private readonly IDataService<Client> dataservice;
+        private readonly IActualProject actualProject;
+        private readonly IRenavigator renavigator;
+        private readonly ClientListViewModel clientListViewModel;
+
+        public AddClientCommand(IDataService<Client> dataservice, IActualProject actualProject, IRenavigator renavigator, ClientListViewModel clientListViewModel)
+        {
+            this.dataservice = dataservice;
+            this.actualProject = actualProject;
+            this.renavigator = renavigator;
+            this.clientListViewModel = clientListViewModel;
+        }
+
+        public override async Task ExecuteAsync(object? parameter)
+        {
+            
+            Client newClient = await dataservice.Create(new Client());
+            actualProject.SetClient(newClient,false);
+            //actualProject.SetClient(clientListViewModel.SelectedClient);
+            renavigator.Renavigate();
+        }
+    }
+}