Following are some common errors that might occur with the Tsplice web API:
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| ASP.NET Core app fails to start due to CryptographicException |
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Symptoms When trying to request some data from the Tsplice API, an error message is returned to the client: HTTP Error 500.30 - ASP.NET Core app failed to start and the Windows Application event log shows a message like the following: | Code Block |
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Application: w3wp.exe
CoreCLR Version: 8.0.123.58001
.NET Version: 8.0.1
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Security.Cryptography.CryptographicException: The system cannot find the file specified.
at System.Security.Cryptography.CapiHelper.CreateProvHandle(CspParameters parameters, Boolean randomKeyContainer)
at System.Security.Cryptography.RSACryptoServiceProvider.get_SafeProvHandle()
at System.Security.Cryptography.RSACryptoServiceProvider.get_SafeKeyHandle()
at System.Security.Cryptography.RSACryptoServiceProvider..ctor(Int32 keySize, CspParameters parameters, Boolean useDefaultKeySize)
at TPRI.Tsecurity.SigningKey.Load() in d:\tpriNtRt\std\Projects\TPRI.Tsecurity\SigningKey.cs:line 30
at TspliceWebApi.Program.Main(String[] args) in d:\tpriNtRt\std\Projects\TspliceApi\Program.cs:line 27 |
Explanation This error occurs because the web server’s application pool’s Load User Profile setting is set to False. Resolution Follow the instructions at Installation Requirements to fix the Load User Profile setting. See also https://stackoverflow.com/q/17840825. |
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| title | ASP.NET Core app fails to start due to |
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Symptoms When trying to request some data from the Tsplice API, an error message is returned to the client: HTTP Error 500.30 - ASP.NET Core app failed to start and the Windows Application event log shows a message like the following: | Code Block |
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Category: Microsoft.AspNetCore.Hosting.Diagnostics
EventId: 6
Application startup exception
Exception:
System.InvalidOperationException: The Negotiate Authentication handler cannot be used on a server that directly supports Windows Authentication. Enable Windows Authentication for the server and the Negotiate Authentication handler will defer to it.
at Microsoft.AspNetCore.Authentication.Negotiate.PostConfigureNegotiateOptions.PostConfigure(String name, NegotiateOptions options)
at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
at System.Lazy`1.CreateValue()
at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd[TArg](String name, Func`3 createOptions, TArg factoryArgument)
at Microsoft.Extensions.Options.OptionsMonitor`1.Get(String name)
at Microsoft.AspNetCore.Authentication.Negotiate.Internal.NegotiateOptionsValidationStartupFilter.<>c__DisplayClass2_0.<Configure>b__0(IApplicationBuilder builder)
at Microsoft.AspNetCore.Hosting.GenericWebHostService.StartAsync(CancellationToken cancellationToken)
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Explanation This error occurs because Windows Authentication is disabled in the web server application’s Authentication settings. Resolution Follow the instructions at Installation Requirements to fix the Windows Authentication setting. |