How configurate a SAP System Registry in Web Dynpro ?

Hi everybody,
When i deploy a web dynpro application,
i obtain the following error:
"No default system is configured in SAP System Registry"
In menu Window->Preferences->SAP AS Java,
i need to register SAP instance.
However, i don't know how to retrieve the following information of my SAP system:
- Instance Host ?
- Instance Number ?
Need your help!
Thanks
Rodolphe

localhost
0

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