Originally posted by: OmarAElgendy

I use CPLEX MATLAB function cplexqcp to solve a huge optimization problem with quadratic constraints. The number of variables is in order of 10^6. The error message states that:
------------------------------------------------------------------------
Access violation detected at Mon Sep 29 11:53:44 2014
------------------------------------------------------------------------
Configuration:
Crash Decoding : Disabled
Default Encoding : windows-1252
MATLAB Architecture: win64
MATLAB Root : D:\MATLAB\R2013b
MATLAB Version : 8.2.0.701 (R2013b)
Operating System : Microsoft Windows 8
Processor ID : x86 Family 6 Model 58 Stepping 9, GenuineIntel
Virtual Machine : Java 1.7.0_11-b21 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
Window System : Version 6.2 (Build 9200)
Fault Count: 1
Abnormal termination:
Access violation

Would you please help me?

Originally posted by: OmarAElgendy

I figured out that the Mex file: cplexlink125.mexw64 was generated for MATLAB 2008, whereas I am using it in MATLAB 2013B. Is this the main reason for MATLAB crashing? just a backward compatabilty error??