报错

***************************
APPLICATION FAILED TO START
***************************

Description:

Failed to bind properties under 'logging.level' to java.util.Map<java.lang.String, org.springframework.boot.logging.LogLevel>:

    Property: logging.level
    Value: debug
    Origin: class path resource [application.yml] - 25:10
    Reason: org.springframework.core.convert.ConverterNotFoundException: No converter found capable of converting from type [java.lang.String] to type [java.util.Map<java.lang.String, org.springframework.boot.logging.LogLevel>]

Action:

Update your application's configuration

错误原因

配置文件写错了

解决

按照官网的案例

logging:
  level:
    root: "warn"
    org.springframework.web: "debug"
    org.hibernate: "error"