Exception has been thrown by the target of an invocation error mscorlib

Question

I have a website developed in ASP Net 2 0 that is throwing the error    Exception has been thrown by the target of an invocation     in the production environment  It was not throwing this error in development   The source is  mscorlib   and the stack trace says the error at       System RuntimeMethodHandle  InvokeMethodFast    The only thing I ve changed since my last upload to production is that I ve started using Membership controls  Login  LoginView   and have added a few more stored procedures and tables  etc  The membership depends upon a custom provider I ve written   Anybody have a clue why this could be happening

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Encounter the same error when tried to connect to SQLServer2017 through Management Studio 2014

The reason was backward compatibility

So I just downloaded the Management Studio 2017 and tried to connect to SQLServer2017.

Problem Solve!!

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This can happen when invoking a method that doesn t exist

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This is may have 2 reasons   1 I found the connection string error in my web config file i had changed the connection string and its working    Connection string is proper then check with the control panel services  SQL Server Browser   start or not

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This error occurs to me due to I have not set my Project as StartUp Project  When I set my current project to Set As Start-Up Project then it gone

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I d suggest checking for an inner exception  If there isn t one  check your logs for the exception that occurred immediately prior to this one   This isn t a web-specific exception  I ve also encountered it in desktop-app development   In short  what s happening is that the thread receiving this exception is running some asynchronous code  via Invoke    e g   and that code that s being run asynchronously is exploding with an exception   This target invocation exception is the aftermath of that failure   If you haven t already  place some sort of exception logging wrapper around the asynchronous callbacks that are being invoked when you trigger this error   Event handlers  for instance   That ought to help you track down the problem   Good luck

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I know its kind of odd but I experienced this error for a  c  application and finally I found out the problem is the Icon of the form  when I changed it everything just worked fine   I should say that I had this error just in XP not in 7 or 8

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I just had this issue from a namespace mismatch  My XAML file was getting ported over and it had a different namespace from that in the code behind file

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Get the your application s application domain  Dim currentDomain As AppDomain   AppDomain CurrentDomain     Define a handler for unhandled exceptions  AddHandler currentDomain UnhandledException  AddressOf MYExHandler     Define a handler for unhandled exceptions for threads behind forms  AddHandler Application ThreadException  AddressOf MYThreadHandler   Private Sub MYExnHandler ByVal sender As Object    ByVal e As UnhandledExceptionEventArgs   Dim EX As Exception  EX   e ExceptionObject  Console WriteLine EX StackTrace   End Sub   Private Sub MYThreadHandler ByVal sender As Object    ByVal e As Threading ThreadExceptionEventArgs   Console WriteLine e Exception StackTrace   End Sub    This code will throw an exception and will be caught    Dim X as Integer   5 X   X   0  throws exception will be caught by subs below

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Got same error  solved changing target platform from  Mixed Platforms  to  Any CPU

[asp.net] "Exception has been thrown by the target of an invocation" error (mscorlib)

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