Have you installed all the prerequisites, especially the Outlook client with the profile ?

I can´t reproduce the error on a fresh installation.

1. Reboot your server.

2. Check if the ExAsCommon XML in your database contains the filled in information.

Can you give a more detailed error description?

Thanks a lot. It worked as what you said. And now when I installed the WorkerSetup component, error occurred again. The error information was "Failed to query the SystemConfig table to get the ExDpKey". Someone already asked the question in the community, but i have done following the methods as other one said. Did you know the reason? Thanks.