еще ошибки

University/UniversityClientApp/Program.cs

@@ -22,26 +22,14 @@ builder.Services.AddTransient<IPurchaseStorage, PurchaseStorage>();
 builder.Services.AddTransient<IClassStorage, ClassStorage>();
 builder.Services.AddTransient<IPaymentStorage, PaymentStorage>();
 
-builder.Services.AddLogging(option =>
-{
-    var configuration = new ConfigurationBuilder()
-        .SetBasePath(Directory.GetCurrentDirectory())
-        .AddJsonFile(path: "appsettings.json", optional: false, reloadOnChange: true)
-        .Build();
 
-    var logger = new LoggerConfiguration()
-        .ReadFrom.Configuration(configuration)
-        .CreateLogger();
-
-    option.AddSerilog(logger);
-});
 
 var app = builder.Build();
 // Configure the HTTP request pipeline.
 if (!app.Environment.IsDevelopment())
 {
     app.UseExceptionHandler("/Error");
-    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
+    // The default HSTS value is 30 days. You may want to change this for production scenarios
     app.UseHsts();
 }
 

University/UniversityClientApp/UniversityClientApp.csproj

@@ -20,6 +20,8 @@
     <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
     <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
     <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog.Sinks.Console" Version="5.0.1" />
+    <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
     <PackageReference Include="System.Text.Json" Version="6.0.0" />
   </ItemGroup>
 

University/UniversityDatabaseImplement/Implements/ClientStorage.cs

@@ -24,6 +24,8 @@ namespace UiversityDatabaseImplement.Implements
             using var context = new UniversityDB();
 
             return context.Clients.FirstOrDefault(x => x.PhoneNumber.Equals(model.PhoneNumber) && (string.IsNullOrEmpty(model.Password) || x.Password.Equals(model.Password)))?.GetViewModel;
+
+
         }
         public ClientViewModel? Insert(ClientBindingModel model)
         {

University/UniversityDatabaseImplement/Models/Purchase.cs

@@ -13,9 +13,9 @@ namespace UniversityDatabaseImplement.Models
     {
         public int ClientId { get; private set; }
         public DateOnly DatePurchase { get; private set; }
-        private Dictionary<int, ClassByPurchaseModel>? _cachedOperations;
+        private Dictionary<int, ClassByPurchaseModel>? _cachedClasses;
         [NotMapped]
-        public Dictionary<int, ClassByPurchaseModel> ClassModel => _cachedOperations ??= Operations.Select (x => (ClassByPurchaseModel)x).ToDictionary(x => x.ClassId, x => x);
+        public Dictionary<int, ClassByPurchaseModel> ClassModel => _cachedClasses ??= Class.Select(x => (ClassByPurchaseModel)x).ToDictionary(x => x.ClassId, x => x);
         [NotMapped]
         public List<CostByPurchaseModel>? CostsModel => null;
         public int Id { get; private set; }
@@ -90,7 +90,7 @@ namespace UniversityDatabaseImplement.Models
 				.Select(x => x.Value).ToList()
 				.ForEach(x => x.CountClass = newOperations[x.ClassId].CountClass);
 			context.SaveChanges();
-            _cachedOperations = null;
+            _cachedClasses = null;
         }
     }
 }

University/UniversityDatabaseImplement/UniversityDB.cs

@@ -11,12 +11,7 @@ namespace UniversityDatabaseImplement
         {
             if (optionsBuilder.IsConfigured == false)
             {
-                optionsBuilder.UseNpgsql(@"
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=FishFactoryDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True"
-                    Host=localhost;
-                    Port=5432;
-                    Database=BankFullNew;
-                    Username=postgres;
-                    Password=55256636a;");
             }
             base.OnConfiguring(optionsBuilder);
         }

University/UniversityEmpoyeeApp/Program.cs

@@ -23,19 +23,7 @@ builder.Services.AddTransient<ICostStorage, CostStorage>();
 builder.Services.AddTransient<IPurchaseStorage, PurchaseStorage>();
 builder.Services.AddTransient<IPaymentStorage, PaymentStorage>();
 
-builder.Services.AddLogging(option =>
-{
-    var configuration = new ConfigurationBuilder()
-        .SetBasePath(Directory.GetCurrentDirectory())
-        .AddJsonFile(path: "appsettings.json", optional: false, reloadOnChange: true)
-        .Build();
 
-    var logger = new LoggerConfiguration()
-        .ReadFrom.Configuration(configuration)
-        .CreateLogger();
-
-    option.AddSerilog(logger);
-});
 
 var app = builder.Build();
 

University/UniversityEmpoyeeApp/UniversityEmpoyeeApp.csproj

@@ -20,6 +20,8 @@
     <PackageReference Include="Microsoft.Extensions.Logging" Version="6.0.0" />
     <PackageReference Include="Newtonsoft.Json.Bson" Version="1.0.2" />
     <PackageReference Include="Serilog" Version="3.1.1" />
+    <PackageReference Include="Serilog.Sinks.Console" Version="5.0.1" />
+    <PackageReference Include="Serilog.Sinks.File" Version="5.0.0" />
     <PackageReference Include="System.Text.Json" Version="6.0.0" />
   </ItemGroup>