java.lang.NoClassDefFoundError: org/springframework/boot/autoconfigure/web/servlet/StringConverterInitializer
at org.springframework.fu.jafu.webmvc.WebMvcServerDsl$WebMvcServerConverterDsl.string(WebMvcServerDsl.java:247) ~[spring-fu-jafu-0.4.3.jar:na]
at com.example.springfudemo.FuApplication.lambda$null$2(FuApplication.java:30) [classes/:na]
at org.springframework.fu.jafu.webmvc.WebMvcServerDsl$WebMvcServerConverterDsl.initialize(WebMvcServerDsl.java:240) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.webmvc.WebMvcServerDsl.converters(WebMvcServerDsl.java:129) ~[spring-fu-jafu-0.4.3.jar:na]
at com.example.springfudemo.FuApplication.lambda$null$3(FuApplication.java:29) [classes/:na]
at org.springframework.fu.jafu.webmvc.WebMvcServerDsl.initialize(WebMvcServerDsl.java:145) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.webmvc.WebMvcServerDsl.initialize(WebMvcServerDsl.java:48) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.AbstractDsl.enable(AbstractDsl.java:57) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.ConfigurationDsl.enable(ConfigurationDsl.java:77) ~[spring-fu-jafu-0.4.3.jar:na]
at com.example.springfudemo.FuApplication.lambda$static$4(FuApplication.java:23) [classes/:na]
at org.springframework.fu.jafu.ApplicationDsl.initialize(ApplicationDsl.java:27) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.ApplicationDsl.initialize(ApplicationDsl.java:15) ~[spring-fu-jafu-0.4.3.jar:na]
at org.springframework.boot.SpringApplication.applyInitializers(SpringApplication.java:634) ~[spring-boot-2.5.1.jar:2.5.1]
at org.springframework.boot.SpringApplication.prepareContext(SpringApplication.java:403) ~[spring-boot-2.5.1.jar:2.5.1]
at org.springframework.boot.SpringApplication.run(SpringApplication.java:337) ~[spring-boot-2.5.1.jar:2.5.1]
at org.springframework.fu.jafu.JafuApplication.run(JafuApplication.java:98) [spring-fu-jafu-0.4.3.jar:na]
at org.springframework.fu.jafu.JafuApplication.run(JafuApplication.java:68) [spring-fu-jafu-0.4.3.jar:na]
at com.example.springfudemo.FuApplication.main(FuApplication.java:37) [classes/:na]
Caused by: java.lang.ClassNotFoundException: org.springframework.boot.autoconfigure.web.servlet.StringConverterInitializer
at java.net.URLClassLoader.findClass(URLClassLoader.java:382) ~[na:1.8.0_221]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[na:1.8.0_221]
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) ~[na:1.8.0_221]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[na:1.8.0_221]
... 18 common frames omitted
spring-boot-autoconfigure jar conflit with spring boot 2.5.1
when exlude jar from spring fu
get class not fuond err
exlude springboot's with same error
why getting start so hard