Nota
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The following APIs always throw an exception on .NET (Core) on all or a subset of platforms. In most cases, the exception that's thrown is PlatformNotSupportedException.
This article organizes the affected APIs by namespace.
Note
- This article is a work-in-progress. It is not a complete list of APIs that throw exceptions on .NET 5+.
- This article does not include the explicit interface implementations for binary serialization that throw on .NET 5+. For more information, see Binary serialization in .NET Core.
System
System.CodeDom.Compiler
| Member | Platforms that throw |
|---|---|
| CodeDomProvider.CompileAssemblyFromDom | All |
| CodeDomProvider.CompileAssemblyFromFile | All |
| CodeDomProvider.CompileAssemblyFromSource | All |
System.Collections.Specialized
System.Configuration
| Member | Platforms that throw |
|---|---|
| System.Configuration.RsaProtectedConfigurationProvider (all members) | All |
System.Console
| Member | Platforms that throw |
|---|---|
| Console.Beep() | Linux and macOS |
| Console.BufferHeight (set only) | Linux and macOS |
| Console.BufferWidth (set only) | Linux and macOS |
| Console.CursorSize (set only) | Linux and macOS |
| Console.CursorVisible (get only) | Linux and macOS |
| Console.MoveBufferArea | Linux and macOS |
| Console.SetWindowPosition | Linux and macOS |
| Console.SetWindowSize | Linux and macOS |
| Console.Title (get only) | Linux and macOS |
| Console.WindowHeight (set only) | Linux and macOS |
| Console.WindowLeft (set only) | Linux and macOS |
| Console.WindowTop (set only) | Linux and macOS |
| Console.WindowWidth (set only) | Linux and macOS |
System.Data.Common
| Member | Platforms that throw |
|---|---|
| DbDataReader.GetSchemaTable (throws NotSupportedException) | All |
System.Diagnostics.Process
| Member | Platforms that throw |
|---|---|
| Process.MaxWorkingSet (set only) | Linux |
| Process.MinWorkingSet (set only) | Linux |
| Process.ProcessorAffinity | macOS |
| Process.MainWindowHandle | Linux and macOS |
| Process.Start(String, String, String, SecureString, String) | Linux and macOS |
| Process.Start(String, String, SecureString, String) | Linux and macOS |
| ProcessStartInfo.UserName | Linux and macOS |
| ProcessStartInfo.PasswordInClearText | Linux and macOS |
| ProcessStartInfo.Domain | Linux and macOS |
| ProcessStartInfo.LoadUserProfile | Linux and macOS |
| ProcessThread.BasePriority (set only) | Linux and macOS |
| ProcessThread.BasePriority (get only) | macOS |
| ProcessThread.ProcessorAffinity (set only) | Linux and macOS |
System.IO
| Member | Platforms that throw |
|---|---|
| FileSystemInfo(SerializationInfo, StreamingContext) | All |
| FileSystemInfo.GetObjectData(SerializationInfo, StreamingContext) | All |
System.IO.Pipes
| Member | Platforms that throw |
|---|---|
| NamedPipeClientStream.NumberOfServerInstances | Linux and macOS |
| NamedPipeServerStream.GetImpersonationUserName() | Linux and macOS |
| PipeStream.InBufferSize | Linux and macOS |
| PipeStream.OutBufferSize | Linux and macOS |
| PipeStream.ReadMode (set only) | Linux and macOS |
| PipeStream.WaitForPipeDrain() | Linux and macOS |
System.Media
| Member | Platforms that throw |
|---|---|
| SoundPlayer(SerializationInfo, StreamingContext) | All |
System.Net
* .NET 9 and later versions.
System.Net.NetworkInformation
| Member | Platforms that throw |
|---|---|
| Ping.Send | Windows (UWP) |
System.Net.Sockets
| Member | Platforms that throw |
|---|---|
| Socket(SocketInformation) | All |
| Socket.DuplicateAndClose(Int32) | All |
System.Net.WebSockets
| Member | Platforms that throw |
|---|---|
| WebSocket.RegisterPrefixes() | All |
System.Reflection
System.Runtime.CompilerServices
| Member | Platforms that throw |
|---|---|
| DebugInfoGenerator.CreatePdbGenerator() | All |
System.Runtime.InteropServices
| Member | Platforms that throw |
|---|---|
| IDispatchImplAttribute | All |
| Marshal.GetIDispatchForObject(Object) | All |
| RuntimeEnvironment.SystemConfigurationFile | All |
| RuntimeEnvironment.GetRuntimeInterfaceAsIntPtr(Guid, Guid) | All |
| RuntimeEnvironment.GetRuntimeInterfaceAsObject(Guid, Guid) | All |
| WindowsRuntimeMarshal.StringToHString(String) | Linux and macOS |
| WindowsRuntimeMarshal.PtrToStringHString(IntPtr) | Linux and macOS |
| WindowsRuntimeMarshal.FreeHString(IntPtr) | Linux and macOS |
System.Runtime.Serialization
* .NET 9 and later versions. † .NET 8 only for all project types except Windows Forms and WPF.
System.Security
System.Security.Claims
System.Security.Cryptography
* .NET 11 and later versions.
System.Security.Cryptography.Pkcs
| Member | Platforms that throw |
|---|---|
| CmsSigner(CspParameters) | All |
| SignerInfo.ComputeCounterSignature() | All |
System.Security.Cryptography.X509Certificates
| Member | Platforms that throw |
|---|---|
| X509Certificate(SerializationInfo, StreamingContext) | All |
| X509Certificate.Import | All |
| X509Certificate2(SerializationInfo, StreamingContext) | All |
| X509Certificate2.PrivateKey (set only) | All |
System.Security.Authentication.ExtendedProtection
| Member | Platforms that throw |
|---|---|
| ExtendedProtectionPolicy(SerializationInfo, StreamingContext) | All |
System.Security.Policy
| Member | Platforms that throw |
|---|---|
| Hash.GetObjectData(SerializationInfo, StreamingContext) | All |
System.ServiceProcess.ServiceController
| Member | Platforms that throw |
|---|---|
| TimeoutException(SerializationInfo, StreamingContext) | All |
System.Text.RegularExpressions
| Member | Platforms that throw |
|---|---|
| Regex.CompileToAssembly | All |
System.Threading
| Member | Platforms that throw |
|---|---|
| CompressedStack.GetObjectData(SerializationInfo, StreamingContext) | All |
| ExecutionContext.GetObjectData(SerializationInfo, StreamingContext) | All |
| Thread.Abort | All |
| Thread.ResetAbort() | All |
| Thread.Resume() | All |
| Thread.Suspend() | All |