Member Avatar for smartintelleng

[img][/img]
testing wether this post works, trying to host the image from my site since i dont know how to do it using his form for threads
If the image shows, could you tell me what that debugging error means

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posted a runtime stop inside stat.exe that points to a managed null-reference condition. was on the right track: the runtime exception means some reference being dereferenced has no instance behind it. That diagnosis is specific to the CLR—pure native C++ typically produces an access-violation instead—so confirming whether the build is managed (C++/CLI or mixed) or native is the first step. Official behavior is documented by Microsoft: System.NullReferenceException documentation.

Practical checklist to locate the offending reference:

  • Enable breaking on thrown CLR exceptions (Exception Settings / Debug -> Exceptions in older VS): this stops exactly where the problem occurs. See .
  • When it breaks, open Call Stack and pick the first frame in user code. Inspect Locals/Autos/Watch and evaluate suspicious expressions in the Immediate window to find the null.
  • If the problematic variable is a structure/field (for example the ptloci structure mentioned earlier), add temporary guards to detect nulls before dereference.

Quick guard examples (short, safe checks):

/* C# */
if (ptloci == null) throw new ArgumentNullException(nameof(ptloci));
var count = ptloci?.Members?.Count ?? 0;

/* C++/CLI */
if (ptloci == nullptr) throw gcnew System::ArgumentNullException("ptloci");

/* native C++ */
if (ptr == NULL) { /* handle error or log and return */ }

Other useful checks: audit methods that can legitimately return null (lookups, FirstOrDefault, factory methods), ensure event delegates and out/ref parameters are initialized, and review any interop marshalling between native and managed code. For longer-term prevention in C# code, consider enabling nullable reference types: Nullable reference types. 's BBCode tweak will display the original screenshot if visual context is still needed.

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Member Avatar for smartintelleng

Since the image didnt work. Heres the error message: an unhandled exception of type 'System.NullReferenceException' occured in stat.exe
additional information: Object reference not set to an instance of an object.
than of course you got the options break, and continue but i need to fix this error. If you can tell me what it means it would be of great help

Member Avatar for Dave Sinkula

You could edit your image tags to look like this:
[IMG][/IMG]
Then you will see this:
[IMG][/IMG]

Member Avatar for nvanevski

The error means that you are trying to access an uninitialized object (not necessarrilly NULL, but uninitialized). Having bad experiences with VS.NET debugger, my hint would be to inspect the objects that you use a couple of lines before the break line (as much I can see from the code, that would be the ptloci structure and its members).

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