Developer forum

I think "System.MissingMethodException" is very descriptive as it means that .NET tries to execute a method that doesn't exist in the DLL. So maybe prod has either an older version of the DLL or the set up isn't right? Maybe the namespace does have everything to do with it?

Imar

Well, as I said, the same namespace is used on the staging server and it works fine. Regarding the method, it's defenetly there since I am able to select it in "Method" dropdown 

During the development I encountered different errros, of course and I managed to fix them using the debug mode. In the interface, the error was always "Method not found" so it's not descriptive at all. Anyways, on the production I can't use debug mode to see what is the issue. I made a DB backup and I run it in my local instance and it works fine. 

It's descriptive in the sense that it explains that it tries to execute something that doesn't exist. It could be a class name, namespace or method name that is different. But it could also be parameters. I think the add-in either expects a parameterless method or needs a match in parameters defined. Maybe yours has parameters that cannot be resolved at runtime? Or maybe the number of parameters you specified doesn't match with the number of parameters in your method?

This is the declaration

This is the setup:

This shouldnt have any issues. 

There something though, tat I don't have to much control though:

Could this crash the service somehow ? :-/ 

>> Could this crash the service somehow ? :-/ 

I doubt it.

Does it say which method is missing?

This is the exact log 

And can you show the full code for the class including the namespace? I would use a decompiler and look at the raw source for the DLL on the server.

Imar

There it is :-) 

Can you rename it to .txt  and try again? Also, is this the original source code or the decompiled code? I think the latter is important to ensure you are looking at what gets used.

It's the original code 

Oh, you want me to decompile the compiled version ? What's the point If I wrote it , compiled it and deployed it ? I can try to do that too ... 

There is no point if they are indeed identical. However, since it doesn't work, something must be off. My guess is that the DLL on production doesn't contain what you think it does. 

I just set up the same concept on my end usign a method like this:

namespace KBW.CustomModules.NotificationSubscribers.Payments
{
  public class SubscriptionService
  {
    public void AutoCharge(string shopId, string paymentId, string stateId)
    {
    }
  }
}

and set up like this:

And it works as expected:

I've just come back from vacation while one of my colleagues found the issue. I will shortley explain here:

The error message thrown by DW is missleading. The DLL was ok, but one of the methods inside my service had an error. DW doesn't throw the BaseError Message, but instead throws  this "MissingMethodException: Method not found".

That makes sense, thank you :-)