spring-data-cassandra 1.5.0.M1 BeanInstantiationException

Question

运行spring boot应用程序时，获取以下BeanInstantiationException：

org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'sampleCassandraApplication': 
    Unsatisfied dependency expressed through field 'repository':
    Error creating bean with name 'customerRepository': 
    Cannot resolve reference to bean 'cassandraTemplate' while setting bean property 'cassandraTemplate'; 
    nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: 
    Error creating bean with name 'cassandraTemplate' defined in class path resource [org/springframework/boot/autoconfigure/data/cassandra/CassandraDataAutoConfiguration.class]: 
    Unsatisfied dependency expressed through method 'cassandraTemplate' parameter 0: Error creating bean with name 'session' defined in class path resource [org/springframework/boot/autoconfigure/data/cassandra/CassandraDataAutoConfiguration.class]: 
    Unsatisfied dependency expressed through method 'session' parameter 0: 
    Error creating bean with name 'cassandraConverter' defined in class path resource [org/springframework/boot/autoconfigure/data/cassandra/CassandraDataAutoConfiguration.class]: 
    Unsatisfied dependency expressed through method 'cassandraConverter' parameter 0: 
    Error creating bean with name 'cassandraMapping' defined in class path resource [org/springframework/boot/autoconfigure/data/cassandra/CassandraDataAutoConfiguration.class]: Bean instantiation via factory method failed; 
    nested exception is org.springframework.beans.BeanInstantiationException:
    Failed to instantiate [org.springframework.data.cassandra.mapping.CassandraMappingContext]: 
    Factory method 'cassandraMapping' threw exception;
     nested exception is java.lang.NoSuchFieldError: INSTANCE; nested exception is org.springframework.beans.factory.BeanCreationException: 
    Error creating bean with name 'cassandraMapping' defined in class path resource [org/springframework/boot/autoconfigure/data/cassandra/CassandraDataAutoConfiguration.class]: 
    Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: 
    Failed to instantiate [org.springframework.data.cassandra.mapping.CassandraMappingContext]: 
    Factory method 'cassandraMapping' threw exception; 

嵌套异常为java.lang.NoSuchFieldError: INSTANCE；

当进入源代码时，发现了以下内容：

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Answer 1

最初，我忘记添加CassandraConfig类(http://docs.spring.io/spring-data/cassandra/docs/1.5.0.M1/reference/html/#cassandra-connectors.javaconfig)，它不是spring-boot提供的示例的一部分。所以现在它起作用了。