【Kotlin】spring boot项目中，在Idea下启动，报错@Configuration class 'BugsnagClient' may not be final.

报错如下：

Exception encountered during context initialization - cancelling refresh attempt: org.springframework.beans.factory.parsing.BeanDefinitionParsingException: Configuration problem: @Configuration class 'BugsnagClient' may not be final. Remove the final modifier to continue.
Offending resource: class path resource [com/rollong/chinatower/server/exception/bugsnag/BugsnagClient.class]

代码中应该：

请在fun前加上open