Eclipse showing “Maven Configuration Problem: Unknown”

Question

I just imported a spingboot project that I created in https://start.spring.io/ in eclipse. I tried to import two times, but the problem persists. Already tried to do a mvn u

Answer 1

This seems like a bug in eclipse: https://bugs.eclipse.org/bugs/show_bug.cgi?id=547340

You can fix this by temporary downgrading the maven jar plugin version to 3.1.1 from 3.1.2. Add this to the properties section:

3.1.1

So your pom will look like this:

4.0.0

    org.springframework.boot
    spring-boot-starter-parent
    2.1.5.RELEASE
     

com.in28minutes.springboot.rest.example
spring-boot-2-jpa-with-hibernate-and-h2
0.0.1-SNAPSHOT
spring-boot-2-jpa-with-hibernate-and-h2
Demo project for Spring Boot


    11
    3.1.1



    
        org.springframework.boot
        spring-boot-starter-data-jpa
    
    
        org.springframework.boot
        spring-boot-starter-web
    

    
        org.springframework.boot
        spring-boot-devtools
        runtime
    
    
        com.h2database
        h2
        runtime
    
    
        org.projectlombok
        lombok
        true
    
    
        org.springframework.boot
        spring-boot-starter-test
        test
    



    
        
            org.springframework.boot
            spring-boot-maven-plugin
        
    

Update: A fix has been released. Click Help > Check for updates in Eclipse/STS and install the newest m2e connector.