patran和dytran安装完后,在patran 中建立新的.db文件时,选择dytran求解器时出错。出错提示如下:The PCL library file, mscdytran.plb, associated with the current analysis preference, MSC.Dytran, does not exist. This file is required and used to store analysis code specific PCL functions. This could be an installation issue. You must select a valid preference from the Preferences menu before you can continue.
不知道怎么解决?