Object reference not set to an instance of an object.
Method 1: Rerun "setup /prepareAD"
- On the server that is running Microsoft Exchange Server, open a Command Prompt window as an administrator, and then change to the folder in which the Exchange installation files are stored.
- Run the following command:
- Restart the server.
- Rerun the Hybrid Configuration wizard.
Method 2: Perform an authoritative restore of the hybrid objectRestore the hybrid object that was deleted from the following location:
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