Application stalled and now I get an exception?

Posted on 2014-01-10
Last Modified: 2014-01-13
Not sure what caused this but my application stalled on startup so I stopped the execution and then restarted my app. When I got the point in the image it threw an exception (see attachment). Any ideas on why this happened and how to resolve it?

Question by:BlakeMcKenna
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LVL 63

Expert Comment

by:Fernando Soto
ID: 39772883
Hi BlakeMcKenna;

It is hard to tell from the exception dialog box. What is more helpful is to see if there is any inner exception which would be more meaningful. When you get this exception in the section of the dialog box "Action" click on Copy exception details to the clipboard then post that into a Code block, Code icon above. Also see if this is occurring in your code, "Make sure you do not have an infinite loop or infinite recursion. Too many method calls is often indicative of a very deep or unbounded recursion".
LVL 40

Accepted Solution

Jacques Bourgeois (James Burger) earned 500 total points
ID: 39773364
Since this happens on the declaration of Private variables, it is outside of a method, so I would not look for recursion, even it if is the most common cause of a StackOverflowException.

We would need to see more of the code to understand what happens.

Could it be in the déclarations of a Structure? Structures should be small objects. Microsoft suggests no more than 16 bytes for a Structure. In such a case, changing the Structure to a Class could solve the problem

Author Comment

ID: 39776686
I figured it out. It was a Private declaration to instantiate a Form from the main assembly.

Public Class FileIndicator

     Private BH As New BusinessLayer.CalBusiness
     Private EH As New ErrorHandling.ErrorHandler

     Private frm As New frmEquipmentSetup    'Line in question

Open in new window

Not sure why this would do that. When I came to the line in question, it executed then went back up to the first declaration of the BH variable, which started an infinite loop. I don't understand why it would do that though?
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LVL 63

Expert Comment

by:Fernando Soto
ID: 39776704
So this is what caused the error, "Make sure you do not have an infinite loop or infinite recursion. Too many method calls is often indicative of a very deep or unbounded recursion".

Good, glad to see you found it.

Author Comment

ID: 39776716
But I don't understand why it would execute that statement and then return to the top of the declarations?
LVL 63

Expert Comment

by:Fernando Soto
ID: 39776736
As far why that declaration was causing an infinite loop I would suspect that creating that form frmEquipmentSetup  makes a new  FileIndicator instance which call starts the infinite loop going.

Author Comment

ID: 39776940
that makes sense!

LVL 63

Expert Comment

by:Fernando Soto
ID: 39776952
Did you mark the correct post as the solution?

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