Non-resolvable parent POM in SpringBoot

This may be because of spring initializer created project pom file like this

<parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>2.0.5.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent> 

However, sts is compatible with version "2.0.4.RELEASE", just make this change

<parent>        <groupId>org.springframework.boot</groupId>        <artifactId>spring-boot-starter-parent</artifactId>        <version>2.0.4.RELEASE</version>        <relativePath/> <!-- lookup parent from repository -->    </parent> 

further Maven -> Update Project

Solved the issue.There was a little mistake. It should be 1.4.2.RELEASE instead of 1.4.2 RELEASE. There should not be space between RELEASE and 2. This little dot was causing the issue.

From where revision will be replaced ?

Modify pom.xml by specifying any version like below.

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