Non-resolvable parent POM in SpringBoot

Question

I am trying to setup a Maven project for a Spring Boot application but while trying to save the pom.xml file I am getting this following issue:

Project build error: Non-resolvable parent POM for
io.javabrains.springbootquickstart:course-api:0.0.1-SNAPSHOT: Could not find artifact
org.springframework.boot:spring-boot-starter-parent:pom:${revision} in central (https:// repo.maven.apache.org/maven2) and 'parent.relativePath' points at wrong local POM

Here is my pom.xml file:

<project xmlns="http://maven.apache.org/POM/4.0.0" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 
http://maven.apache.org/xsd/maven-4.0.0.xsd">


  <modelVersion>4.0.0</modelVersion>
  <groupId>io.javabrains.springbootquickstart</groupId>
  <artifactId>course-api</artifactId>
 <version>0.0.1-SNAPSHOT</version>
 <name>Java Api course</name>


 <parent>
    <!-- Your own application should inherit from spring-boot-starter-parent -->
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2 RELEASE</version>
  </parent>



 <dependencies>
   <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-web</artifactId>
   </dependency>
 </dependencies>
</project>

I am following a tutorial where version is 1.4.2 RELEASE but still I was getting this error so, I searched for a demo file where ${revision} was there. — Kshitiz Sharma, Aug 03 '18 at 12:12
imo https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/1.4.2.RELEASE/ is a valid url, could you again check and post your error message for the 1.4.2 RELEASE? — T A, Aug 03 '18 at 12:23

score 18 · Answer 1 · answered Sep 18 '18 at 07:09

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

Upvoted, because it solved my issue in STS. How did you figure this out? — Hugo M. Zuleta, Apr 22 '19 at 21:12
I did set up the project using sts and spring initializer separately and then the comparison of pom one by one. — Niraj Jha, May 09 '19 at 06:37

score 8 · Accepted Answer · answered Aug 03 '18 at 12:26

8

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.

answered Aug 03 '18 at 12:26

Kshitiz Sharma

722
6
14
34

score 4 · Answer 3 · answered Aug 03 '18 at 12:17

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>

score 1 · Answer 4 · answered Aug 03 '18 at 12:28

Here :

<parent>
  <!-- Your own application should inherit from spring-boot-starter-parent -->
  <groupId>org.springframework.boot</groupId>
  <artifactId>spring-boot-starter-parent</artifactId>
  <version>${revision}</version>
</parent>

${revision} will be interpolated by Maven (that is translated) only if Maven finds a variable with the revision name.
But revision is not a Maven built in variables. While variables as ${project.version} and ${project.artifactId} are.

So in your case, you have to declare or pass the variable explicitly if you want to use it.

For example it could work by adding it :

<properties>
  <revision>1.4.2 RELEASE</revision>
</properties>

Or by running maven such as : mvn package -Drevision="1.4.2 RELEASE"

You can find more information here.

Note that a revision property appears to have a too broad meaning and doesn't help to understand the property meaning.
A more precise name such as ${spring-boot-version} would make more sense.

score 1 · Answer 5 · answered Feb 23 '20 at 09:22

1

Replace

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

with

<parent>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-parent</artifactId>
    <version>1.4.2.RELEASE</version>
   <relativePath>../pom.xml</relativePath> <!-- lookup parent from repository -->
</parent>

answered Feb 23 '20 at 09:22

nandini

11
2

Please add explanation – Jan Černý Feb 23 '20 at 09:47

lilalinux · Answer 6 · 2020-02-13T12:18:46.923

Check your Proxy Settings. In case you are working with a company PC that already has Proxys configured for browsers but not yet for your IDE or maven, you could probably enter the same information as for your browsers. You can find them e.g. by opening the network settings of your browser -> LAN Settings and then download the proxy.pac file from the address given in the input field. That file is human readable.

After that, you might still need to handle SSL errors by either

correctly handling the company's own PKI or
ignoring SSL errors or
using http instead of https https://stackoverflow.com/a/46665598/1410212 NOT POSSIBLE ANYMORE SINCE 2020

score 0 · Answer 7 · answered May 04 '20 at 05:22

0

For me, actually AntiVirus was working in my system. So, I have disabled that for an hour and changed my version to 2.0.4.RELEASE and it works for me.

answered May 04 '20 at 05:22

Anurag Litoriya

1

Non-resolvable parent POM in SpringBoot

7 Answers7