"Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

oidon — Sat, 09 Dec 2006 11:41:10 GMT

Increasing the limit is an easy fix. However, was it intentionally restricted to 32,767? I am not sure that I am comfortable having a few million local variables in a single method. What is the desired functionality?

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

mjeelani — Sun, 10 Dec 2006 13:21:15 GMT

"I am not sure that I am comfortable having a few million local variables in a single method"

[mjeelani] You are right - you shouldn't be comfortable till you break that method into multiple methods and do an aggressive code review on it. However, from a framework perspective I think the 32767 limit was being hit very often especially by the COBOL developers hence I believe the limit was increased.

InvalidProgramException - Though a very small method.

Gaurav — Thu, 03 May 2007 16:41:01 GMT

I have a method with just a few lines of code and there is a call to another method from there which never takes place!

The exception is exactly what has been described.

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

Mohammad Reza Jooyandeh — Thu, 27 Sep 2007 09:09:22 GMT

I have a mixture of .NET 2.0 and VC++6.0 code. I wrote my coclass in VC and implement IList, ICollection and IEnumerable which are comvisible.

Then I used the coclass in .NET because of that implementation I can use the object as an ICollection object. But whenever I call one its methods I caught an InvalidProgramException.

How should I do?!

The Worst Bug Ever

Danie Bruwer — Mon, 26 Nov 2007 09:26:21 GMT

I do support on a SharePoint Portal (2003, Framework 1.1). Last week after we deployed some new functionality

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

Allen B. Taylor — Sat, 16 Feb 2008 00:42:28 GMT

I got this exception in a C++/CLI app built in release mode (debug mode works fine). It happens when a native method is called from another native method. The call never happens. Disabling optimization on the called module has fixed the problem. Nasty.

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

Ku Prabhu — Thu, 10 Jul 2008 13:20:08 GMT

Thank you so much dudes.

Now its working fine to me. After I break into many methods from one large method(39087 lines).

Thanks a lot once again.

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

Llyle — Tue, 03 Mar 2009 00:28:33 GMT

I managed to get this exception while using Test Driven .Net with a RowTest (which is smallish). A simple solution recompile fixed this for me.

re: "Common Language Runtime detected an invalid program" - InvalidProgramException - When your application has a really large method.

Troy Howard — Fri, 21 Aug 2009 05:16:26 GMT

@Allen B. Taylor - If you still want optimization turned on the for rest of the code, but just want to avoid this exception scenario, you can decorate the sensitive methods with [MethodImpl(MethodImplOptions.NoOptimization)] attribute and the compiler will skip optimizations for that method. I had to do that in a recent program that was doing some byte to struct mapping stuff using Marshal.StructureToPtr/PtrToStructure, etc.. Compiler couldn't figure it out, and so, decorating those "low level" methods that moved the byte data around with that attribute allowed me to get a good build with optimization turned on for the rest of the code.

Hope that helps,

Troy