求助，大神请进

Step 1: Verifying Error Scenario
...completed.
Step 2: Setting parameter Integration Method (METHOD) to Gear
Simulating...
...completed. Simulation error fixed.
Step 3: Attempting rollback of Integration Method (METHOD) to Trapezoidal
Simulating...
...Error recurred - rollback unsuccessful.
Step 4: Restoring value of Integration Method (METHOD) to Gear
Convergence Assistant completed successfully.
Multisim收敛助理日志
Step 1: Verifying Error Scenario
步骤1：验证错误的情形
...completed.
……完成。
Step 2: Setting parameter Integration Method (METHOD) to Gear
步骤2：参数设置方法（方法）一体化的齿轮
Simulating...
模拟…
...completed. Simulation error fixed.
……完成。模拟误差修正。
Step 3: Attempting rollback of Integration Method (METHOD) to Trapezoidal
步骤3：尝试回滚的集成方法（方法）梯形
Simulating...
模拟…
...Error recurred - rollback unsuccessful.
……复发-回滚失败的错误。
Step 4: Restoring value of Integration Method (METHOD) to Gear
步骤4：恢复积分值（方法）齿轮
Convergence Assistant completed successfully.
收敛助理成功完成。
步骤3那个到底咋改啊，我都晕啦~用的multisim13，求大神帮忙