Error at startup:
11:09:05.540 [main] ERROR org.springframework.boot.SpringApplication - Application run failed
java.lang.NoSuchMethodError: org.springframework.util.Assert.notNull(Ljava/lang/Object;Ljava/util/function/Supplier;)V
at org.springframework.boot.convert.StringToEnumIgnoringCaseConverterFactory.getConverter(StringToEnumIgnoringCaseConverterFactory.java:42)
at org.springframework.core.convert.support.GenericConversionService$ConverterFactoryAdapter.matches(GenericConversionService.java:423)
Reason: There is a problem with the dependency, and the specific dependency is still uncertain
Solution: Modify the version of spring-boot-starter-parent from 2.0.1.RELEASE to 1.5.2.RELEASE