error building plugin

Hi,

I am trying to build a custom dissector as a plugin starting from an existing dissector code, in this case the iec104 dissector (iec104.c). I downloaded the source files for Wireshark and was able to compile the code. As a first test, I just used the existing dissector code of the iec104 protocol without modifications and tried to compile it as a plugin. I followed all the steps as described in this tutorial: http://www.sewio.net/open-sniffer/develop/how-to-compile-your-wireshark-dissector/

Still, I am getting the following errors when compiling the plugin:

ERROR: Cannot determine the location of the VS Common Tools folder.
Microsoft (R) Program Maintenance Utility Version 12.00.21005.1
Copyright (C) Microsoft Corporation.  All rights reserved.
    cl  /DWINPCAP_VERSION=4_1_3 /Zi /W3 /MD /O2 /DWIN32_LEAN_AND_MEAN /DMSC_VER_REQUIRED=1800  /D_CRT_SECURE_NO_DEPRECATE /D_CRT_NONSTDC_NO_DEPRECATE -DPSAPI_VERSION=1 /D_ALLOW_KEYWORD_MACROS /DBUILD_WINDOWS /D_BIND_TO_CURRENT_CRT_VERSION=1 /MP /GS /w34295  /I../.. /Ih:\Documents\DevelopmentWireshark\Wireshark-win32-libs-1.12\gtk2\include\glib-2.0  /Ih:\Documents\DevelopmentWireshark\Wireshark-win32-libs-1.12\gtk2\lib\glib-2.0\include  -DG_DISABLE_DEPRECATED  -DG_DISABLE_SINGLE_INCLUDES  /Ih:\Documents\DevelopmentWireshark\Wireshark-win32-libs-1.12\Wdpack\include -Fd.\ -c packet-iec104.c

Microsoft (R) C/C++ Optimizing Compiler Version 18.00.31101 for x86
Copyright (C) Microsoft Corporation.  All rights reserved.
packet-iec104.c
packet-iec104.c(1810) : error C2099: initializer is not a constant
packet-iec104.c(1810) : warning C4047: 'initializing' : 'const void *' differs in levels of indirection from 'int'
packet-iec104.c(1810) : warning C4047: 'initializing' : 'guint32' differs in levels of indirection from 'char [17]'
packet-iec104.c(1810) : warning C4047: 'initializing' : 'const char *' differs in levels of indirection from 'int'
packet-iec104.c(1810) : warning C4047: 'initializing' : 'int' differs in levels of indirection from 'void *'
packet-iec104.c(1810) : warning C4047: 'initializing' : 'guint32' differs in levels of indirection from 'char [8]'
packet-iec104.c(1810) : warning C4047: 'initializing' : 'guint32' differs in levels of indirection from 'char [7]'
NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 12.0\VC\BI
N\cl.EXE"' : return code '0x2'
Stop.

Does anyone know what I’m doing wrong? As i said before, I didn’t even modify the dissector code yet.

Many thanks!