matlab simulink 仿真时出现如下错误怎么办

如果：
The block diagram 'three_phase_inverter_pwm' uses bus signals. However,
the 'Mux blocks used to create bus signals' diagnostic is not configured
to 'error'. To prevent modeling errors:

(1) Open Upgrade Advisor and run the 'Check for Mux blocks used to create bus signals' check.
(2) Follow the recommendations from this check to make your model compliant.

解决步骤如下：
1，在matlab命令窗口运行：upgradeadvisor('three_phase_inverter_pwm')，（注：印号内容为model的文件名）
2，初始化一会以后会弹出一个界面，把左边的勾选框拖到下面，选中"Check for Mux blocks used to create bus signals"，并且点击右边的“Run This Check”。
3，check完以后，点击最下面的“modify”按钮就行。