generated code unable to be downloaded on the NXT-Brick

HI Guy!

I am working since 3 weeks with the VU-LRT Toolbox and the Lego Mindstorm NXT. I made many Simulink-Programs to run on the NXT Brick. The simulation works perfectly but the code generation breaks or could not be on the NXT Brick downloaded with this error message:

The call to lrt_make_rtw_hook, during the after_make hook generated the following error: Build failed during Make all

The build process will terminate as a result.

Could anyone help me to solve my problem ??? If it is due to the RAM's Size please tell how to erase it or to reduce it.

I'm using now a very simple Modell: 1- constant(value:50, datatyp: int8)----> into 2- VU-LRT DC Motor(Port B, when power=0 brake) Simulation parameters: Fixed-Step, discrete sample time 0.01 code generation lrt.tlc LRT code generation: Integer-only, Flash to Lego NXT

please help me ?

ALexander