Embedded Coder Error: Number of fields in structure arrays being concatenated do not match. Concatenation of structure arrays requires that these arrays have the same set of fields.

I've created a mock empty model that captures an error I am getting on my real working model. Despite having almost empty code-generation products, I get the following error when I try to Build my "ExampleModel":

Number of fields in structure arrays being concatenated do not match. Concatenation of structure arrays requires that these arrays have the same set of fields.

Here are my current versions for the products I am using:

----------------------------------------------------------------------------------------------------
MATLAB Version: 9.2.0.538062 (R2017a)
MATLAB License Number: 880864
Operating System: Microsoft Windows 10 Pro Version 10.0 (Build 14393)
Java Version: Java 1.7.0_60-b19 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
----------------------------------------------------------------------------------------------------
MATLAB                                                Version 9.2         (R2017a)
Simulink                                              Version 8.9         (R2017a)
Control System Toolbox                                Version 10.2        (R2017a)
Embedded Coder                                        Version 6.12        (R2017a)
MATLAB Coder                                          Version 3.3         (R2017a)
Simulink 3D Animation                                 Version 7.7         (R2017a)
Simulink Coder                                        Version 8.12        (R2017a)

MEX configured to use 'Microsoft Visual C++ 2015 Professional (C)' for C language compilation.
Warning: The MATLAB C and Fortran API has changed to support MATLAB
   variables with more than 2^32-1 elements. You will be required
   to update your code to utilize the new API.
   You can find more information about this at:
   http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.

Any help would be greatly appreciated!

Answer 1

[Nick Sarnie]

Hi Bryan,

This error is a bug in Embedded Coder R2017a that occurs when the "Show code metrics" option listed in Configuration Parameters>Code Generation>Report is checked, and a model reference block has no generated code associated with it.

There is a patch available to fix this issue, with installation instructions, located here: https://www.mathworks.com/support/bugreports/1588837

If you cannot apply the patch, a workaround is to add an input and output port, and feed the signal directly through, to force the model references to generate code.

[Bryan Rogler]

Hi Nick,

Thanks for response. After installing the update I receive the following errors when I try to define an enumeration in MATLAB:

MATLAB crash file:C:\Users\<user_name>\AppData\Local\Temp\matlab_crash_dump.13500-1:

------------------------------------------------------------------------
             Assertion detected at Wed Sep 06 08:16:14 2017
------------------------------------------------------------------------

Configuration:
  Crash Decoding      : Disabled - No sandbox or build area path
  Crash Mode          : continue (default)
  Current Graphics Driver: Unknown hardware 
  Default Encoding    : windows-1252
  Deployed            : false
  Graphics card 1     : NVIDIA ( 0x10de ) NVIDIA GeForce 8400GS Version 21.21.13.4201
  Host Name           : <host_name>
  MATLAB Architecture : win64
  MATLAB Entitlement ID: 1510044
  MATLAB Root         : C:\Program Files\MATLAB\R2017a
  MATLAB Version      : 9.2.0.538062 (R2017a)
  OpenGL              : hardware
  Operating System    : Microsoft Windows 10 Pro
  Processor ID        : x86 Family 6 Model 94 Stepping 3, GenuineIntel
  Virtual Machine     : Java 1.7.0_60-b19 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
  Window System       : Version 10.0 (Build 14393)

Fault Count: 1

Assertion:
This application failed to start because it could not find or load the Qt platform plugin "windows".

Reinstalling the application may fix this problem.

Register State (captured):
  RAX = 00000000106c23e8  RBX = 00000000106c23e8
  RCX = 000000032042e4b0  RDX = 0000000000000000
  RSP = 000000032042e430  RBP = 0000000000000000
  RSI = 00000000106c23e8  RDI = 0000000000000000

     R8 = 0000000000000000   R9 = 00007ffe2acd0000
    R10 = 00000000106b240d  R11 = 00000000106b240d
    R12 = 0000000000000000  R13 = 000000032042eaf0
    R14 = 00000000106b2318  R15 = 00000000106c2368

    RIP = 00000000104eaa9a  EFL = 00000206

     CS = 0033   FS = 0053   GS = 002b

Stack Trace (captured):
[  0] 0x00000000104e4fc3                              bin\win64\libmwfl.dll+00085955 fl::diag::thread_context::unspecified_bool+00000051
[  1] 0x00000000104e3718                              bin\win64\libmwfl.dll+00079640 fl::diag::stacktrace_base::capture+00000024
[  2] 0x00000000104e6b5a                              bin\win64\libmwfl.dll+00093018 fl::diag::symbols::getSymbolAddress+00006490
[  3] 0x00000000104e63a7                              bin\win64\libmwfl.dll+00091047 fl::diag::symbols::getSymbolAddress+00004519
[  4] 0x00000000104ea4e8                              bin\win64\libmwfl.dll+00107752 fl::diag::terminate+00000072
[  5] 0x000000003aafc345                                 bin\win64\glee.dll+00705349 GLEE::lookup+00007205
[  6] 0x00000000a32d1665 C:\Program Files\MATLAB\R2017a\bin\win64\Qt5CoreMW.dll+00136805 MW_QT::qt_message_output+00000277
[  7] 0x00000000a32d152f C:\Program Files\MATLAB\R2017a\bin\win64\Qt5CoreMW.dll+00136495 MW_QT::qt_logging_to_console+00000143
[  8] 0x00000000a32cfc97 C:\Program Files\MATLAB\R2017a\bin\win64\Qt5CoreMW.dll+00130199 MW_QT::QMessageLogger::fatal+00000071
[  9] 0x00007ffe16b8bce7 C:\Program Files\MATLAB\R2017a\bin\win64\Qt5GuiMW.dll+00179431 MW_QT::QGuiApplicationPrivate::init+00005111
[ 10] 0x00007ffe16b8973e C:\Program Files\MATLAB\R2017a\bin\win64\Qt5GuiMW.dll+00169790 MW_QT::QGuiApplicationPrivate::createPlatformIntegration+00001358
[ 11] 0x00007ffe16b8906b C:\Program Files\MATLAB\R2017a\bin\win64\Qt5GuiMW.dll+00168043 MW_QT::QGuiApplicationPrivate::createEventDispatcher+00000027
[ 12] 0x00000000a34511d0 C:\Program Files\MATLAB\R2017a\bin\win64\Qt5CoreMW.dll+01708496 MW_QT::QCoreApplication::init+00000240
[ 13] 0x00000000a344f031 C:\Program Files\MATLAB\R2017a\bin\win64\Qt5CoreMW.dll+01699889 MW_QT::QCoreApplication::QCoreApplication+00000049
[ 14] 0x00007ffe16b8704f C:\Program Files\MATLAB\R2017a\bin\win64\Qt5GuiMW.dll+00159823 MW_QT::QGuiApplication::QGuiApplication+00000015
[ 15] 0x00000000a378e1dc C:\Program Files\MATLAB\R2017a\bin\win64\Qt5WidgetsMW.dll+00057820 MW_QT::QApplication::QApplication+00000076
[ 16] 0x000000003aaf0efe                                 bin\win64\glee.dll+00659198 GLIMReentrancyProtector::GLIMReentrancyProtector+00000126
[ 17] 0x000000003ab5b029                                 bin\win64\glee.dll+01093673 GuiObject::scheduleDelete+00095945
[ 18] 0x000000003ab5a9ad                                 bin\win64\glee.dll+01092013 GuiObject::scheduleDelete+00094285
[ 19] 0x00007ffe2b1bd24c C:\Program Files\MATLAB\R2017a\bin\win64\MSVCP120.dll+00250444 std::_Pad::_Release+00000108
[ 20] 0x00007ffe2acf4f7f C:\Program Files\MATLAB\R2017a\bin\win64\MSVCR120.dll+00151423 beginthreadex+00000263
[ 21] 0x00007ffe2acf5126 C:\Program Files\MATLAB\R2017a\bin\win64\MSVCR120.dll+00151846 endthreadex+00000402
[ 22] 0x00007ffe3bed8364                   C:\WINDOWS\System32\KERNEL32.DLL+00033636 BaseThreadInitThunk+00000020
[ 23] 0x00007ffe3c747091                      C:\WINDOWS\SYSTEM32\ntdll.dll+00422033 RtlUserThreadStart+00000033

If this problem is reproducible, please submit a Service Request via:
    http://www.mathworks.com/support/contact_us/

A technical support engineer might contact you with further information.

Thank you for your help.

[Nick Sarnie]

Hi Bryan,

Please make a technical support case if you are still running into this issue.