Communication channels do not appear in RWB

Dear experts,
I am using PI 7.1, after creating some communication Channels for my scenarios, although they appear in the ABAP system (sxi_cache), they do not appear in the RWB.
And when i choose the menu Cache Status Overview in ID, it shows the error below:
"Unable to determine the name of the central Adapter Engine from the System Landscape Directory at this time. Notifications to the central Adapter Engine are therefore listed using the technical name of the Adapter Engine. This is usually structured as follows: af.<SAP System ID>.<Name of application server>"
Pls show me where i am wrong.
Thanks in advance.
Thien Duong.

Hi,
Refer these links:
/people/venugopalarao.immadisetty/blog/2007/03/15/adapter-engine-cannot-be-found-in-integration-directory
/people/vikas.jain12/blog/2009/01/13/sld-self-registration-problems-and-troubleshooting
In PI 7.0
1. Re-import SAP BASIS SWCV 7.0 into Integration repository
2. Apply SAP Note 764176.
Regards,
Nithiyanandam

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