omnisharp error

OmniSharp:
System.DllNotFoundException: System.Native
  at (wrapper managed-to-native) Interop+Sys:GetUnixNamePrivate ()
  at Interop+Sys.GetUnixName () [0x00000] in <2c0705c248b844f597694acdb70b3a23>:0
  at System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform (System.Runtime.InteropServices.OSPlatform osPlatform) [0x00009] in <2c0705c248b844f597694acdb70b3a23>:0
  at Microsoft.Extensions.Logging.Console.ConsoleLogger..ctor (System.String name, System.Func`3[T1,T2,TResult] filter, System.Boolean includeScopes) [0x00051] in <e9a418d09ae748d6a3f11d651b9e1106>:0
  at Microsoft.Extensions.Logging.Console.ConsoleLoggerProvider.CreateLoggerImplementation (System.String name) [0x00019] in <e9a418d09ae748d6a3f11d651b9e1106>:0
  at System.Collections.Concurrent.ConcurrentDictionary`2[TKey,TValue].GetOrAdd (TKey key, System.Func`2[T,TResult] valueFactory) [0x0002e] in <4dc8ec68b0964e099af86e50301f5f3c>:0
  at Microsoft.Extensions.Logging.Console.ConsoleLoggerProvider.CreateLogger (System.String name) [0x00000] in <e9a418d09ae748d6a3f11d651b9e1106>:0
  at Microsoft.Extensions.Logging.Logger.AddProvider (Microsoft.Extensions.Logging.ILoggerProvider provider) [0x00000] in <7f94c143dddc47f8b60fd6e1fd86a745>:0
  at Microsoft.Extensions.Logging.LoggerFactory.AddProvider (Microsoft.Extensions.Logging.ILoggerProvider provider) [0x00061] in <7f94c143dddc47f8b60fd6e1fd86a745>:0
  at Microsoft.Extensions.Logging.ConsoleLoggerExtensions.AddConsole (Microsoft.Extensions.Logging.ILoggerFactory factory, System.Func`3[T1,T2,TResult] filter, System.Boolean includeScopes) [0x00008] in <e9a418d09ae748d6a3f11d651b9e1106>:0
  at Microsoft.Extensions.Logging.ConsoleLoggerExtensions.AddConsole (Microsoft.Extensions.Logging.ILoggerFactory factory, System.Func`3[T1,T2,TResult] filter) [0x00000] in <e9a418d09ae748d6a3f11d651b9e1106>:0
  at OmniSharp.Startup.Configure (Microsoft.AspNetCore.Builder.IApplicationBuilder app, System.IServiceProvider serviceProvider, Microsoft.Extensions.Logging.ILoggerFactory loggerFactory, OmniSharp.Stdio.Services.ISharedTextWriter writer, OmniSharp.Services.IAssemblyLoader loader, Microsoft.Extensions.Options.IOptionsMonitor`1[TOptions] options) [0x00032] in <9f3d4f7df72e4f4b947e335a26182149>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <4dc8ec68b0964e099af86e50301f5f3c>:0
--- End of stack trace from previous location where exception was thrown ---
  at Microsoft.AspNetCore.Hosting.Internal.WebHost.Initialize () [0x00008] in <24af31b64ae843689736582353a19b3a>:0
  at Microsoft.AspNetCore.Hosting.WebHostBuilder.Build () [0x0008a] in <24af31b64ae843689736582353a19b3a>:0
  at OmniSharp.Program+<>c__DisplayClass1_0.<Run>b__1 () [0x00196] in <9f3d4f7df72e4f4b947e335a26182149>:0
  at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute (System.String[] args) [0x0035b] in <e56ebbc3ed87488b8e26736bbadaa5d3>:0
  at OmniSharp.Program.Run (System.String[] args) [0x001ae] in <9f3d4f7df72e4f4b947e335a26182149>:0
  at OmniSharp.Program.Main (System.String[] args) [0x0001c] in <9f3d4f7df72e4f4b947e335a26182149>:0