关于函数模拟的问题

绯红的礼帽

当我编辑好程序，在tools，sinulink中运行时，出现了以下错误提示：
Warning: 'Signal storage reuse' is enabled for this model. Block I/O values displayed in the debugger may not be correct.
In order to preserve block output signal values, consider disabling the 'Signal storage reuse' option in the 'Optimization' > 'Signals and Parameters' pane of the Configuration Parameters dialog

Warning: 'Block reduction optimization' is enabled for this model. Some non-virtual blocks may not execute due to optimization.
To be able to execute all non-virtual blocks consider disabling the 'Block reduction optimization' option in the 'Optimization >' pane of the Configuration Parameters dialog

??? Error using ==> sldebugui at 78
Block diagram 'SpringElementStiffness' contains no blocks or all blocks are virtual，求大侠指点