Resource provider is not registered to subscription. Did you know?

(ResourceProviderNotRegistered) The Microsoft.Blueprint resource provider is not registered to subscription [guid]. The resource provider must be registered before a subscription can be used with Azure Blueprints. Please register it with the subscription and try again.

The message above is a partial message, the complete one is available below:

(ResourceProviderNotRegistered) The Microsoft.Blueprint resource provider is not registered to subscription [guid]. The resource provider must be registered before a subscription can be used with Azure Blueprints. Please register it with the subscription and try again. Code: ResourceProviderNotRegistered Message: The Microsoft.Blueprint resource provider is not registered to subscription [guid]. The resource provider must be registered before a subscription can be used with Azure Blueprints. Please register it with the subscription and try again.

How to fix it?

Then search for the missing provider, select it and then Register:

Similar issue on Github: https://github.com/MicrosoftDocs/azure-docs/issues/54841