Debug Assertion Failed! Error - how do I fix this?
Expand Post »
*When I compile the program it works. However, when I try to run the program, it outputs the first message then gives me the following error-*
CSCI112LAB2.exe has encountered a problem and needs to close. We are sorry for the inconvenience.
*And when I tried to debug it*
Unhandled exception at 0x7855b690 in CSCI112LAB2.exe: 0xC0000005: Access violation reading location 0x00000000.
There is no source code available for the current location.
*And this appears in the output box*
'CSCI112LAB2.exe': Loaded 'C:\Documents and Settings\Tina\My Documents\Visual Studio 2008\Projects\CSCI112LAB2\Release\CSCI112LAB2.exe', Symbols loaded.
'CSCI112LAB2.exe': Loaded 'C:\WINDOWS\system32\ntdll.dll'
'CSCI112LAB2.exe': Loaded 'C:\WINDOWS\system32\kernel32.dll'
'CSCI112LAB2.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375\msvcp90.dll'
'CSCI112LAB2.exe': Loaded 'C:\WINDOWS\WinSxS\x86_Microsoft.VC90.CRT_1fc8b3b9a1e18e3b_9.0.21022.8_x-ww_d08d0375\msvcr90.dll'
First-chance exception at 0x7855b690 in CSCI112LAB2.exe: 0xC0000005: Access violation reading location 0x00000000.
Unhandled exception at 0x7855b690 in CSCI112LAB2.exe: 0xC0000005: Access violation reading location 0x00000000.
The program '[5520] CSCI112LAB2.exe: Native' has exited with code 0 (0x0).
*So…I have no idea how to fix this. I played around with it for a while and still can’t get it to work. I don’t understand what I can do to fix an error when it says that there is no source code at the location to fix.*
*New error message! – I just got this one this morning when I tried to run the debug. I have no idea what it means, except for the invalid null pointer part, but I don’t think I was using any pointers that I myself deliberately put there.*
Debug Assertion Failed!
Program: …Visual Studio 2008\Projects\CSCI112LAB2\Debug\CSCI112LAB2.exe
File: f:\dd\vctools\crt_bld\self_x86\crt\src\xstring
Line: 1094
Expression: invalid null pointer
For information on how your program can cause an assertion failure, see the Visual C++ documentation on asserts.
Re: Debug Assertion Failed! Error - how do I fix this?
Thanks for taking the time to reply!
But I'm not using pointers in the code...so, it's kinda hard for me to find it. Maybe it's just 'cause I'm not too great at C++, but I'm pretty sure I didn't do that since I try to avoid pointers at all costs.
Re: Debug Assertion Failed! Error - how do I fix this?
> (Press Retry to debug the application)
Do this.
When the debugger starts, do something like
view->stack
That will tell you how the code got to that point.
Somewhere through the various stack levels will be your code. Click on the first one you recognise. It should open your source code. Examine really carefully all the parameters which are being passed. Chances are, one of them is NULL, and it shouldn't be.
Re: Debug Assertion Failed! Error - how do I fix this?
It happens the instant the program begins to run. The program outputs the first cout line and then the error occurs before the next line. The lines involved are:
Either the thread starter or a moderator has marked this thread as solved. You can most likely trust the responses and answers given. There is most likely no reason for any further responses to be posted here. If you have a related question, please start a new thread in this forum instead.
This thread is more than three months old
No one has posted to this discussion for at least three months. Please let old threads die and do not reply to them unless you feel you have something new and valuable to contribute that absolutely must be added to make the discussion complete. Otherwise, please start a new thread in this forum instead.
Offline 
Marked 
