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Why is my application crashing?

First-chance exception at 0x000007FED4529B4C (UE4Editor-Prototype.dll) in UE4Editor.exe: 0xC0000005: Access violation reading location 0x0000000000000000. If there is a handler for this exception, the program may be safely continued. I suspect this is the culprit:

 void UBlueprintNodes::CreateBuildingInstance(FBuildingBlueprint BuildingBlueprint, FBuildingInstance &BuildingInstance)
 {
     BuildingInstance = FBuildingInstance();
     BuildingInstance.BuildingBlueprint = BuildingBlueprint;
 }

The BuildingBlueprint property is an input slot for the node and it contains a SimpleJsonValue.

 SimpleJsonValue::~SimpleJsonValue()
 {
     
 }

When my application first crashes it brings me to the closing curly brace of the destructor above. I can't tell how to debug this and find out the culprit :|

Here is attached debug log. link text

Product Version: Not Selected
Tags:
prototype.txt (14.7 kB)
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asked Oct 07 '14 at 08:44 PM in C++ Programming

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virusescu
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avatar image Moss Oct 07 '14 at 09:17 PM

Could you post the full crash log? A bit more of your code (specially the part of FBuildingInstance) would be very helpful. The exception itself means that you are accessing a NULL pointer or a memory location that has been already freed.

avatar image virusescu Oct 07 '14 at 09:37 PM

updated the question with log file

avatar image Moss Oct 07 '14 at 09:38 PM

Check the Saved folder of your project.

avatar image virusescu Oct 07 '14 at 09:46 PM

@Moss attached

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