Yeah! I was inspired by your comments,finally I gave the %DB_%DEFAULT RW permissions.

It's very valuable，I'll read intensively

Sorry Jeff, I thought I had sent the email, but I just realized that I pressed the wrong button.

Thank you for offering in my two posts，I think I can do the rest by myself.

Best wishs,

Daoyuan

finally I solved the problem  by setting resource %DB_%DEFAULT RW permissions.

I can't even compile a class that doesn't extends any classes but only writes HelloWorld

Thank you for answering me so quickly, but I'm still confused cause I'm a novice.

What is the '％Library.RoutineMgr_StudioOpenDialog ' for AND how should I grant execute on this thing  to ％Developer？

Hi Jeff, 

It's also not work in my localhost server. I'll try your suggestion and  I'll contact you if I still trapped in this problem.

thank you for your enthusiastic help.

Best wishes,

Daoyuan