tlc is telling me that I attempt to call a non-function value

Hey guys,

I'm trying to call an own written tlc function (GpioPlatformInclusions()) from another tlc file. TLC is telling me that I "attempt to call a non-function value: NULL" when trying to call this function. Here is my source code

Function in file to be included :

%function GpioPlatformInclusions() Output
 #include "LPC1769_GPIO/LPC1769_GPIO.h"
 #include "LPC1769_GPIO/LPC1769_GPIO_PIN.h"
%endfunction

Code to include the file (path is correctly build via an own matlab function:

%function includePlatformgpio() void
  %assign platform= mbed_getPlatform()
  %assign platformroot = FEVAL("%<platform>_root")
  %include "%<platformroot>/target/gpio/%<platform>_gpio.tlc" 
  %return
%endfunction

Location Where Function gets called :

%function GpioInclusions() Output
 %<includePlatformgpio()>
 #include "MDD_GPIO/MDD_GPIO.h"
 #include "MDD_GPIO/MDD_GPIO_PORT.h"
 #include "MDD_GPIO/MDD_GPIO_PIN.h"
%<GpioPlatformInclusions()>
%endfunction

Thank you for your help !