Case import between different versions
 

I try to read a case which is coded in Fluent 4.5 into Fluent 4, but the following error always shows up:

Building....

error: Null Domain Pointer

Error Object: ()

Error: %repair-face-handedness: invalid grid. Error Object: ()

Does anyone know how to solve this problem? The case file should not have any problem because I download it directly from tutorials.