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:
Still need help? Go to Microsoft Community or the Exchange TechNet Forums.
Article ID: 3067696 - Last Review: 21 Dec 2016 - Revision: 1