APPLICATION FAILED TO START: Correct the classpath of your application so that it contains compatible versions of the classes org.springframework.boot.autoconfigure.web.embedded.TomcatWebServerFactoryCustomizer and org.apache.coyote.http11.AbstractHttp11Protocol

[brianraila]

What would be causing this?

An attempt was made to call a method that does not exist. The attempt was made from the following location:
org.springframework.boot.autoconfigure.web.embedded.TomcatWebServerFactoryCustomizer.lambda$customizeRejectIllegalHeader$20(TomcatWebServerFactoryCustomizer.java:209)
The following method did not exist:
void org.apache.coyote.http11.AbstractHttp11Protocol.setRejectIllegalHeader(boolean)
The calling method's class, org.springframework.boot.autoconfigure.web.embedded.TomcatWebServerFactoryCustomizer, was loaded from the following location:
jar:file:/app/main.war!/WEB-INF/lib/spring-boot-autoconfigure-3.2.6.jar!/org/springframework/boot/autoconfigure/web/embedded/TomcatWebServerFactoryCustomizer.class
The called method's class, org.apache.coyote.http11.AbstractHttp11Protocol, is available from the following locations:
jar:file:/app/main.war!/WEB-INF/lib/tomcat-embed-core-11.0.2.jar!/org/apache/coyote/http11/AbstractHttp11Protocol.class
The called method's class hierarchy was loaded from the following locations:
org.apache.coyote.http11.AbstractHttp11Protocol: jar:file:/app/main.war!/WEB-INF/lib/tomcat-embed-core-11.0.2.jar!/
org.apache.coyote.AbstractProtocol: jar:file:/app/main.war!/WEB-INF/lib/tomcat-embed-core-11.0.2.jar!/
Action:
Correct the classpath of your application so that it contains compatible versions of the classes org.springframework.boot.autoconfigure.web.embedded.TomcatWebServerFactoryCustomizer and org.apache.coyote.http11.AbstractHttp11Protocol

[XcrigX]

Errors like that are caused by conflicting versions of a common dependency in the dependency hierarchy.
Are you getting the error using this project as-is, or have you customized it?

[brianraila]

I am running the project as is.
I resorted to running it via Docker instead and now getting a

Error: Could not find or load main class org.springframework.boot.loader.PropertiesLauncher 2Caused by: java.lang.ClassNotFoundException: org.springframework.boot.loader.PropertiesLauncher