a fatal non-ui error

[Pokemon404]

I extracted all from the zip into a folder as usual, and the PKhex version before this worked perfectly fine, so I dunno why this happened. Please help!

Spoiler

System.NullReferenceException: Object reference not set to an instance of an object.
   at PKHeX.WinForms.Program.GetFrameworkVersion()
   at PKHeX.WinForms.Program.CheckNETFramework()
   at PKHeX.WinForms.Program.Main()
System.TypeLoadException: Could not load type 'System.Runtime.CompilerServices.ExtensionAttribute' from assembly 'mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089'.
   at System.ModuleHandle.ResolveMethod(RuntimeModule module, Int32 methodToken, IntPtr* typeInstArgs, Int32 typeInstCount, IntPtr* methodInstArgs, Int32 methodInstCount)
   at System.ModuleHandle.ResolveMethodHandleInternalCore(RuntimeModule module, Int32 methodToken, IntPtr[] typeInstantiationContext, Int32 typeInstCount, IntPtr[] methodInstantiationContext, Int32 methodInstCount)
   at System.ModuleHandle.ResolveMethodHandleInternal(RuntimeModule module, Int32 methodToken, RuntimeTypeHandle[] typeInstantiationContext, RuntimeTypeHandle[] methodInstantiationContext)
   at System.Reflection.CustomAttributeData..ctor(RuntimeModule scope, CustomAttributeRecord caRecord)
   at System.Reflection.CustomAttributeData.GetCustomAttributes(RuntimeModule module, Int32 tkTarget)
   at System.Reflection.CustomAttributeData.GetCustomAttributesInternal(RuntimeAssembly target)
   at System.Reflection.RuntimeAssembly.GetCustomAttributesData()
   at System.Reflection.CustomAttributeData.GetCustomAttributes(Assembly target)
   at System.Resources.ManifestBasedResourceGroveler.GetNeutralResourcesLanguage(Assembly a, UltimateResourceFallbackLocation& fallbackLocation)
   at System.Resources.ResourceManager.CommonSatelliteAssemblyInit()
   at System.Resources.ResourceManager..ctor(Type resourceSource)
   at System.ComponentModel.ComponentResourceManager..ctor(Type t)
   at PKHeX.WinForms.ErrorWindow.InitializeComponent()
   at PKHeX.WinForms.ErrorWindow..ctor(String lang)
   at PKHeX.WinForms.ErrorWindow.ShowErrorDialog(String friendlyMessage, Exception ex, Boolean allowContinue)
   at PKHeX.WinForms.Program.CurrentDomain_UnhandledException(Object sender, UnhandledExceptionEventArgs e)

 

[Kaphotics]

https://stackoverflow.com/questions/13748055/could-not-load-type-system-runtime-compilerservices-extensionattribute-from-as

install .net framework 4.6

[Pokemon404]

22 hours ago, Kaphotics said:

https://stackoverflow.com/questions/13748055/could-not-load-type-system-runtime-compilerservices-extensionattribute-from-as

install .net framework 4.6

I was thinking it was this, but I need more info first. Was this required for the last build as well or is it new to this one?

[ReignOfComputer]

This was introduced on 31st Jan 2017. There hasn't been any changes to GetFrameworkVersion() (which is what your error stems from) since November of last year - may want to check if it's something on your computer's environment instead?

[Pokemon404]

I'm not sure what to check.

[ReignOfComputer]

Can you verify if .NET Framework 4.6 is installed?

[Pokemon404]

Yes, after my dad gets home. I don't have administrator privileges on my PC, unfortunately.

 

UPDATE: It turns out .NET Framework wasn't installed after all. PKhex is working now. Thanks, guys!

Edited March 29, 2018 by Pokemon404