ASP.NET-MVC – F # ASP.NET CODEDOM ProviderOptions

private static CodeDomProvider CreateCodeDomProviderWithPropertyOptions(Type codeDomProviderType)
{
 IDictionary providerOptions = new Dictionary(GetProviderOptions(codeDomProviderType));
//Snip
}

< br /> 
  type="Microsoft.FSharp.Compiler.CodeDom.FSharpAspNetCo deProvider, 
 FSharp.Compiler.CodeDom">
 
 
 
 

I am creating an ASP.NET MVC application using F# on IIS 7 Program.

When I tried to run it from a browser, I came across a YSOD with the following content:

[ ArgumentNullException: Value cannot
be null. Parameter name: dictionary]
System.Collections.Generic.Dictionary2..ctor(IDictionary2
dictionary, IEqualityComparer`1
comparer) +12700827
System.Web.Compilation.CompilationUtil.CreateCodeDomProviderWithPropertyOptions(Type
codeDomProviderType) +84
System.Web.Compilation.CompilationUtil.CreateCodeDomProviderNonPublic(Type
codeDomProviderType) +16
System .Web.Compilation.AssemblyBuilder..ctor(CompilationSection
compConfig, ICollection
referencedAssemblies, CompilerType
compilerType, String
outputAssemblyName) +469
System.Web.Compilation.CompilerType.CreateAssemblyBuilder(CompilationSection
compConfig, ICollec tion
referencedAssemblies, String
generatedFilesDir, String
outputAssemblyName) +127
System.Web.Compilation.BuildProvidersCompiler.ProcessBuildProviders()
+675 System.Web.Compilation.BuildProvidersCompiler.PerformBuild()
+46 System.Web.Compilation.ApplicationBuildProvider.GetGlobalAsaxBuildResult(Boolean
isPrecompiledApp) +11321455
System.Web.Compilation.BuildManager.CompileGlobalAsax()
+50 System.Web.Compilation.BuildManager. EnsureTopLevelFilesCompiled()
+872

I checked the method of using Reflector to see if it can give me more context, and found that it failed on the first line

p>

private static CodeDomProvider CreateCodeDomProviderWithPropertyOptions(Type codeDomProviderType)
{
IDictionary providerOptions = new Dictionary(GetProviderOptions(codeDomProviderType)) ;
//Snip
}

This leads me to believe that the propertyOptions I specified for F#CodeDom in my Web.config are incorrect. However, if I delete them , I will receive the same error.

 
  type="Microsoft.FSharp.Compiler.CodeDom.FSharpAspNetCodeProvider, 
 FSharp.Compiler.CodeDom">
 
 
 
 

Any thoughts on correcting this error?

This is a bug in ASP.NET in VS2010 Beta2 (it has been fixed, so it will be used in the next version). It affects any A third-party CodeDOM provider, I don’t believe there is any solution.