Compilation error in Simulink Support for Arduino

I am trying to create a device driver block in Simulink for the Adafruit LSM303 IMU, but I keep running into compilation errors. I've copy-pasted the diagnostics output below. Any suggestions? It seems to be looking for avr/io.h somewhere in the MATLAB support package path.

### Generating code into build folder: C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw ### Invoking Target Language Compiler on lsm303u_test1.rtw ### Using System Target File: C:\Program Files\MATLAB\R2017a\rtw\c\ert\ert.tlc ### Loading TLC function libraries ...... ### Initial pass through model to cache user defined code . ### Caching model source code ......................... ### Writing header file lsm303u_test1.h . ### Writing header file lsm303u_test1_types.h ### Writing header file rtwtypes.h ### Writing header file multiword_types.h ### Writing source file lsm303u_test1.c ### Writing header file lsm303u_test1_private.h . ### Writing header file rtmodel.h ### Writing source file ert_main.c ### TLC code generation complete. ### Generating TLC interface API. ... ### Creating data type transition file lsm303u_test1_dt.h .### Evaluating PostCodeGenCommand specified in the model ### Using toolchain: Arduino ARM v1.6.7 | gmake (64-bit Windows) ### 'C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw\lsm303u_test1.mk' is up to date ### Building 'lsm303u_test1': "C:\PROGRA~1\MATLAB\R2017a\bin\win64\gmake" -f lsm303u_test1.mk all

C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw>cd .

C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw>if "" == "" ("C:\PROGRA~1\MATLAB\R2017a\bin\win64\gmake" -f lsm303u_test1.mk all ) else ("C:\PROGRA~1\MATLAB\R2017a\bin\win64\gmake" -f lsm303u_test1.mk ) C:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/tools/arm-none-eabi-gcc/4.8.3-2014q1/bin/arm-none-eabi-gcc -Os -c -g -w -ffunction-sections -fdata-sections -nostdlib --param max-inline-insns-single=500 -Dprintf=iprintf -DARDUINO=10607 -MMD -MP -MF"twi.dep" -MT"twi.o" -MD -mcpu=cortex-m3 -DF_CPU=84000000L -DARDUINO_SAM_DUE -DARDUINO_ARCH_SAM -D__SAM3X8E__ -mthumb -DUSB_VID=0x2341 -DUSB_PID=0x003e -DUSBCON -DUSB_MANUFACTURER=\""Unknown\"" -DUSB_PRODUCT=\""Arduino Due\"" -D_RUNONTARGETHARDWARE_BUILD_ -D_ROTH_DUE_ -DMODEL=lsm303u_test1 -DNUMST=1 -DNCSTATES=0 -DHAVESTDIO -DON_TARGET_WAIT_FOR_START=1 -DTERMFCN=1 -DONESTEPFCN=1 -DMAT_FILE=0 -DMULTI_INSTANCE_CODE=0 -DEXT_MODE=1 -DINTEGER_CODE=0 -DMT=0 -DCLASSIC_INTERFACE=0 -DALLOCATIONFCN=0 -DTID01EQ=0 -DEXIT_FAILURE=1 -DEXTMODE_DISABLEPRINTF -DEXTMODE_DISABLETESTING -DEXTMODE_DISABLE_ARGS_PROCESSING=1 -DSTACK_SIZE=64 -D__MW_TARGET_USE_HARDWARE_RESOURCES_H__ -DRT -DMW_TIMERID=9 -DMW_TIMERCOUNT=131250 -DMW_SAM_CLOCKID=TC_CMR_TCCLKS_TIMER_CLOCK4 -D_RTT_BAUDRATE_SERIAL0_=9600 -D_RTT_BAUDRATE_SERIAL1_=9600 -D_RTT_BAUDRATE_SERIAL2_=9600 -D_RTT_BAUDRATE_SERIAL3_=9600 -D_RTT_ANALOG_REF_=0 -DTERMFCN=1 -DONESTEPFCN=1 -DMAT_FILE=0 -DMULTI_INSTANCE_CODE=0 -DEXT_MODE=1 -DINTEGER_CODE=0 -DMT=0 -DCLASSIC_INTERFACE=0 -DALLOCATIONFCN=0 -DTID01EQ=0 -DON_TARGET_WAIT_FOR_START=1 -DEXIT_FAILURE=1 -DEXTMODE_DISABLEPRINTF -DEXTMODE_DISABLETESTING -DEXTMODE_DISABLE_ARGS_PROCESSING=1 -DSTACK_SIZE=64 -DRT -DMODEL=lsm303u_test1 -DNUMST=1 -DNCSTATES=0 -DHAVESTDIO -IC:/Users/Raghu/Documents/Git-SRCL/rvc_teaching_matlab/ae4733/simulink-arduino/lsm303u_test/lsm303u_driver -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/arduino-1.6.13/hardware/arduino/avr/libraries/Wire -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/arduino-1.6.13/hardware/arduino/avr/libraries/Wire/src -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/arduino-1.6.13/hardware/arduino/avr/libraries/Wire/src/utility -IC:/Users/Raghu/Documents/Git-SRCL/rvc_teaching_matlab/ae4733/simulink-arduino/lsm303u_test/lsm303u_driver/include -IC:/Users/Raghu/Documents/Git-SRCL/rvc_teaching_matlab/ae4733/simulink-arduino/lsm303u_test/lsm303u_driver/lsm303u_test1_ert_rtw -IC:/PROGRA~1/MATLAB/R2017a/extern/include -IC:/PROGRA~1/MATLAB/R2017a/simulink/include -IC:/PROGRA~1/MATLAB/R2017a/rtw/c/src -IC:/PROGRA~1/MATLAB/R2017a/rtw/c/src/ext_mode/common -IC:/PROGRA~1/MATLAB/R2017a/rtw/c/ert -IC:/PROGRA~1/MATLAB/R2017a/toolbox/coder/rtiostream/src/utils -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/system/libsam -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/system/CMSIS/CMSIS/Include -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/system/CMSIS/Device/ATMEL -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/cores/arduino -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/cores/arduino/avr -IC:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/idepkgs/packages/arduino/hardware/sam/1.6.7/variants/arduino_due_x -IC:/ProgramData/MATLAB/SupportPackages/R2017a/toolbox/target/supportpackages/arduinotarget/include -IC:/ProgramData/MATLAB/SupportPackages/R2017a/toolbox/target/supportpackages/arduinotarget/scheduler/include -IC:/ProgramData/MATLAB/SupportPackages/R2017a/toolbox/target/supportpackages/arduinobase/include -IC:/ProgramData/MATLAB/SupportPackages/R2017a/toolbox/target/shared/externalmode_daemon/include -o twi.o C:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/arduino-1.6.13/hardware/arduino/avr/libraries/Wire/src/utility/twi.c C:/ProgramData/MATLAB/SupportPackages/R2017a/3P.instrset/arduinoide.instrset/arduino-1.6.13/hardware/arduino/avr/libraries/Wire/src/utility/twi.c:25:20: fatal error: avr/io.h: No such file or directory #include avr/io.h ^ compilation terminated. gmake: * [twi.o] Error 1

C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw>echo The make command returned an error of 2 The make command returned an error of 2

C:\Users\Raghu\Documents\Git-SRCL\rvc_teaching_matlab\ae4733\simulink-arduino\lsm303u_test\lsm303u_driver\lsm303u_test1_ert_rtw>An_error_occurred_during_the_call_to_make 'An_error_occurred_during_the_call_to_make' is not recognized as an internal or external command, operable program or batch file.

[Stefan Schmidt]

My Problem is nearly the same. The error says, that rtwtypes.h is "missing"