-| Deployment | During Azure Local deployment via portal, **Validate selected machines** fails with this error emssage: `Mandatory extension [Lcm controller] installed version [30.2503.0.907] is not equal to the required version [30.2411.2.789] for Arc machine [Name of the machine]. Please create EdgeDevice resource again for this machine to fix the issue.` | Reinstall the correct version of `AzureEdgeLifecycleManager` extension. Follow these steps: <br> 1. Select the machine and then select **Install extensions**. <br> 2. Repeat this step for each machine you intend to cluster. It takes roughly 15 minutes for the installation to complete. <br> 3. Verify that the `AzureEdgeLifecycleManager` extension version is 30.2411.2.789. <br> 4. After the extensions are installed on all the machines in the list, select **Add machines** to refresh the list. <br> 5. Select **Validate selected machines**. The validation should succeed. |
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