spring-data-cassandra 1.5.0.M1 BeanInstantiationException

Question

当运行 spring启动应用程序时，出现以下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; 

嵌套异常是 java.lang.NoSuchFieldError：实例；

进入源代码时，发现了这个：

Answer 1

最初我忘记添加 CassandraConfig class (http://docs.spring.io/spring-data/cassandra/docs/1.5.0.M1/reference/html/#cassandra-connectors.javaconfig) 这不是 spring-boot 提供的示例的一部分。所以现在可以了。