1.Normally, this error is caught by the compiler; this error can only occur at run time if the definition of a class has incompatibly changed.
通常，该错误由编译器捕获，只有当类的定义发生不相容变化时才发生。
2.Financial crisis is a reason, but also suffer education and social demand to be concerned incompatibly with with undergraduate place.
金融危机是一个原因，但也与大学生所受教育与社会需求格格不入有关。