ÿþ.\BUILD_CLEAN.bat : 'Repair' is not recognized as an internal or external command, At line:1 char:45 + ... :\xampp\htdocs\tracker\agent-csharp" ; .\BUILD_CLEAN.bat 2>&1 | tee b ... + ~~~~~~~~~~~~~~~~~~~~~~ + CategoryInfo : NotSpecified: ('Repair' is not...ternal command, :String) [], RemoteException + FullyQualifiedErrorId : NativeCommandError operable program or batch file. =================================================== PCMonitorAgent - Build with Auto-Repair =================================================== [1/6] Cleaning previous builds... - Cleaned [2/6] Restoring NuGet packages... Determining projects to restore... Restored E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj (in 300 ms). - Restore completed [3/6] Clean build... MSBuild version 17.3.4+a400405ba for .NET Build started 27/03/2026 13:52:33. 1>Project "E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj" on node 1 (Clean target(s)). 1>C:\Program Files\dotnet\sdk\6.0.428\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.DefaultItems.targets(147,5): warning NETSDK1137: It is no longer necessary to use the Microsoft.NET.Sdk.WindowsDesktop SDK. Consider changing the Sdk attribute of the root Project element to 'Microsoft.NET.Sdk'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] 1>CoreClean: Creating directory "obj\Debug\net6.0-windows\". 1>Done Building Project "E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj" (Clean target(s)). Build succeeded. "E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj" (Clean target) (1) -> (_CheckForUnnecessaryWindowsDesktopSDK target) -> C:\Program Files\dotnet\sdk\6.0.428\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.DefaultItems.targets(147,5): warning NETSDK1137: It is no longer necessary to use the Microsoft.NET.Sdk.WindowsDesktop SDK. Consider changing the Sdk attribute of the root Project element to 'Microsoft.NET.Sdk'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] 1 Warning(s) 0 Error(s) Time Elapsed 00:00:00.51 - Cleaned [4/6] Building project (Release)... MSBuild version 17.3.4+a400405ba for .NET Determining projects to restore... All projects are up-to-date for restore. C:\Program Files\dotnet\sdk\6.0.428\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.DefaultItems.targets(147,5): warning NETSDK1137: It is no longer necessary to use the Microsoft.NET.Sdk.WindowsDesktop SDK. Consider changing the Sdk attribute of the root Project element to 'Microsoft.NET.Sdk'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ServiceWrapper.cs(17,13): error CS0103: The name 'DisplayName' does not exist in the current context [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(89,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(90,23): warning CS8618: Non-nullable property 'Response' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(78,23): warning CS8618: Non-nullable property 'CommandType' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(79,23): warning CS8618: Non-nullable property 'CommandParams' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(80,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(65,23): warning CS8618: Non-nullable property 'BrowserName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(66,23): warning CS8618: Non-nullable property 'WebsiteUrl' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(67,23): warning CS8618: Non-nullable property 'WebsiteTitle' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(52,23): warning CS8618: Non-nullable property 'ActivityType' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(53,23): warning CS8618: Non-nullable property 'AppName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(54,23): warning CS8618: Non-nullable property 'AppPath' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(55,23): warning CS8618: Non-nullable property 'WebsiteUrl' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(56,23): warning CS8618: Non-nullable property 'Description' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(19,16): warning CS8618: Non-nullable field 'configData' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(31,32): warning CS0168: The variable 'ex' is declared but never used [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Installers\ServiceInstaller.cs(34,36): warning CS8604: Possible null reference argument for parameter 'path1' in 'string Path.Combine(string path1, string path2)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(76,23): warning CS8602: Dereference of a possibly null reference. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(40,23): warning CS8618: Non-nullable property 'ProcessName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(44,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(20,37): warning CS8618: Non-nullable field 'agentService' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(21,39): warning CS8618: Non-nullable field 'serviceWrapper' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(23,23): warning CS8618: Non-nullable property 'CPUName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(30,23): warning CS8618: Non-nullable property 'OSName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(31,23): warning CS8618: Non-nullable property 'OSVersion' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(10,23): warning CS8618: Non-nullable property 'AgentId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(11,23): warning CS8618: Non-nullable property 'AgentName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(12,23): warning CS8618: Non-nullable property 'PCName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(13,23): warning CS8618: Non-nullable property 'PCIp' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(14,23): warning CS8618: Non-nullable property 'OSInfo' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(15,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(99,69): error CS0117: 'Environment.SpecialFolder' does not contain a definition for 'ProgramData' [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(54,39): warning CS8604: Possible null reference argument for parameter 'path' in 'DirectoryInfo Directory.CreateDirectory(string path)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(22,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(45,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(71,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\CommandExecutor.cs(25,41): error CS0165: Use of unassigned local variable 'commands' [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'activityMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'processMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'systemInfoMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'bandwidthController' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'commandExecutor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(54,28): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(138,17): warning CS8602: Dereference of a possibly null reference. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(73,35): warning CS8604: Possible null reference argument for parameter 's' in 'long long.Parse(string s)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(84,39): warning CS8604: Possible null reference argument for parameter 's' in 'long long.Parse(string s)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(79,32): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(82,32): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(87,24): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] Build FAILED. C:\Program Files\dotnet\sdk\6.0.428\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.DefaultItems.targets(147,5): warning NETSDK1137: It is no longer necessary to use the Microsoft.NET.Sdk.WindowsDesktop SDK. Consider changing the Sdk attribute of the root Project element to 'Microsoft.NET.Sdk'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(89,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(90,23): warning CS8618: Non-nullable property 'Response' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(78,23): warning CS8618: Non-nullable property 'CommandType' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(79,23): warning CS8618: Non-nullable property 'CommandParams' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(80,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(65,23): warning CS8618: Non-nullable property 'BrowserName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(66,23): warning CS8618: Non-nullable property 'WebsiteUrl' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(67,23): warning CS8618: Non-nullable property 'WebsiteTitle' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(52,23): warning CS8618: Non-nullable property 'ActivityType' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(53,23): warning CS8618: Non-nullable property 'AppName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(54,23): warning CS8618: Non-nullable property 'AppPath' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(55,23): warning CS8618: Non-nullable property 'WebsiteUrl' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(56,23): warning CS8618: Non-nullable property 'Description' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(19,16): warning CS8618: Non-nullable field 'configData' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(31,32): warning CS0168: The variable 'ex' is declared but never used [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Installers\ServiceInstaller.cs(34,36): warning CS8604: Possible null reference argument for parameter 'path1' in 'string Path.Combine(string path1, string path2)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(76,23): warning CS8602: Dereference of a possibly null reference. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(40,23): warning CS8618: Non-nullable property 'ProcessName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(44,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(20,37): warning CS8618: Non-nullable field 'agentService' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(21,39): warning CS8618: Non-nullable field 'serviceWrapper' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(23,23): warning CS8618: Non-nullable property 'CPUName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(30,23): warning CS8618: Non-nullable property 'OSName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(31,23): warning CS8618: Non-nullable property 'OSVersion' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(10,23): warning CS8618: Non-nullable property 'AgentId' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(11,23): warning CS8618: Non-nullable property 'AgentName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(12,23): warning CS8618: Non-nullable property 'PCName' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(13,23): warning CS8618: Non-nullable property 'PCIp' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(14,23): warning CS8618: Non-nullable property 'OSInfo' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Models\AgentModels.cs(15,23): warning CS8618: Non-nullable property 'Status' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ConfigReader.cs(54,39): warning CS8604: Possible null reference argument for parameter 'path' in 'DirectoryInfo Directory.CreateDirectory(string path)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(22,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(45,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\BandwidthController.cs(71,33): warning CS1998: This async method lacks 'await' operators and will run synchronously. Consider using the 'await' operator to await non-blocking API calls, or 'await Task.Run(...)' to do CPU-bound work on a background thread. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'activityMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'processMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'systemInfoMonitor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'bandwidthController' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(28,16): warning CS8618: Non-nullable field 'commandExecutor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(54,28): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\AgentService.cs(138,17): warning CS8602: Dereference of a possibly null reference. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(73,35): warning CS8604: Possible null reference argument for parameter 's' in 'long long.Parse(string s)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\SystemInfoMonitor.cs(84,39): warning CS8604: Possible null reference argument for parameter 's' in 'long long.Parse(string s)'. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(79,32): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(82,32): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ApiClient.cs(87,24): warning CS8603: Possible null reference return. [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\src\ServiceWrapper.cs(17,13): error CS0103: The name 'DisplayName' does not exist in the current context [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Program.cs(99,69): error CS0117: 'Environment.SpecialFolder' does not contain a definition for 'ProgramData' [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] E:\xampp\htdocs\tracker\agent-csharp\Services\CommandExecutor.cs(25,41): error CS0165: Use of unassigned local variable 'commands' [E:\xampp\htdocs\tracker\agent-csharp\PCMonitorAgent.csproj] 47 Warning(s) 3 Error(s) Time Elapsed 00:00:00.70 ERROR: Build failed Common issues: 1. Syntax error in a .cs file 2. Missing using statements 3. Mismatched braces Check error messages above for details