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.解決步驟如下：1，在matlab命令視窗執行：upgradeadvisor("three_phase_inverter_pwm")，（注：印號內容為model的檔名）2，初始化一會以後會彈出一個介面，把左邊的勾選框拖到下面，選中"Check for Mux blocks used to create bus signals"，並且點選右邊的“Run This Check”。3，check完以後，點選最下面的“modify”按鈕就行。
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.解決步驟如下：1，在matlab命令視窗執行：upgradeadvisor("three_phase_inverter_pwm")，（注：印號內容為model的檔名）2，初始化一會以後會彈出一個介面，把左邊的勾選框拖到下面，選中"Check for Mux blocks used to create bus signals"，並且點選右邊的“Run This Check”。3，check完以後，點選最下面的“modify”按鈕就行。