<camelContext xmlns="http://camel.apache.org/schema/blueprint"
id="eip-example-context"
errorHandlerRef="myDeadLetterErrorHandler">

The id of the errors example, should be errors-example-context. Or something like that, so it does not have the same id as the eip example.

Also instead of using a <bean> for the dead letter channel, then you can do this inline inside <camelContext>

<errorHandler id="myDLC" type="DeadLetterChannel" deadLetterUri="some uri"/>