java.lang.NoClassDefFoundError: org/springframework/core/env/ConfigurableEnvironment

Question

I am trying to write a simple RESTful service using Spring Boot. However, there is an error message I am not able to solve. I have been researching and it looks like it is a

Answer 1

Delete the springframework folder in repository, then press Alt + F5 and update the project (force update snapshot).

C:\Users\xxxx\.m2\repository\org\springframework

Answer 2

I changed the boot-starter-parent configuration which was runnig version 2.0.0 to 1.4.0 and I was able to run the java application and got rid of this error

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.0.RELEASE</version>  <!-- changed it to version 1.4.0 from 2.0.0-->
    <relativePath/> <!-- lookup parent from repository -->
</parent>

Answer 3

changed the boot-starter-parent version from 1.5.1.RELEASE to 1.4.0.RELEASE.

Answer 4

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
  </parent>

Please Try this one for your parent

Answer 5

I had same problem with Spring boot 2.1.9.RELEASE

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.9.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>

Added pom dependency eliminated this exception:

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-core</artifactId>
        <version>5.2.0.RELEASE</version>
    </dependency>

EDIT - better approach.

Also clean up of maven repository with spring dependencies resolved problem for me, there were not need to add spring-core 5.2.0.RELEASE in pom. Seems that when I had many versions of spring in repo some problem occurs. Also before again resolve dependencies dont forget clean project.

rm -rf ~/.m2/repository/org/springframework/

Answer 6

Spring boot is running -

<spring.version>4.3.2.RELEASE</spring.version>

For -

    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
        <version>1.4.0.RELEASE</version>
    </dependency>

While you are importing -

    <springframework.version>4.3.0.RELEASE</springframework.version>

You can confirm on the master pom -

https://github.com/spring-projects/spring-boot/blob/v1.4.0.RELEASE/spring-boot-dependencies/pom.xml

Can you update the spring version in your pom? Or deal with managing maven dependencies