Non resolvable parent POM when create Maven project

Question

I've created a maven project by using STS4, but when I created, there was an error in line 5 file pom.xml:

Non-resolvable parent POM for com.example:demo2:1.0: org.springframework.boot:spring-boot-starter-parent:pom:2.6.13 failed to transfer from https://repo.maven.apache.org/maven2 during a previous attempt. This failure was cached in the local repository and resolution is not reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.springframework.boot:spring-boot-starter-parent:pom:2.6.13 from/to central (https://repo.maven.apache.org/maven2): repo.maven.apache.org

Here is my file pom.xml `

<?xml version="1.0" encoding="UTF-8"?>
<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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.6.13</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.example</groupId>
    <artifactId>demo2</artifactId>
    <version>1.0</version>
    <name>demo2</name>
    <description>Demo project for Spring Boot</description>
    <properties>
        <java.version>11</java.version>
    </properties>
    <dependencies>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-test</artifactId>
            <scope>test</scope>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>

</project>

`

What should i do to solve this problem? Thanks a lot

Many solutions are listed here : https://stackoverflow.com/questions/7612309/maven-non-resolvable-parent-pom/75682062 — Ben, Mar 09 '23 at 08:31

Michael Katt · Answer 1 · 2022-11-25T08:52:46.947

0

You have to delete the *-not-available file in your local maven repository for org.springframework.boot:spring-boot-starter-parent:pom:2.6.13.

Look at e.g. ( if your local maven repository is .m2)

.m2/org/springframework/boot/spring-boot-starter-parent/2.6.13/

There could be another artefacts with this problem.

If you have too much of these problems you should delete the whole local maven repository.

Afterwards try your maven build with forced update option again.

edited Nov 25 '22 at 08:52

answered Nov 24 '22 at 08:41

Michael Katt

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I've deleted this file, but i still got this error – Nghihoang Nov 24 '22 at 08:49
Is it the same artifact or another one? – Michael Katt Nov 24 '22 at 08:51
Use mvn with -U option to force update – Michael Katt Nov 24 '22 at 08:52
I've followed your advices, but still got the same problem – Nghihoang Nov 24 '22 at 08:53
Remove entry – Michael Katt Nov 24 '22 at 08:55
It's still not worked – Nghihoang Nov 24 '22 at 08:58
Did you added -U option? – Michael Katt Nov 24 '22 at 09:00
And check the local repository directory again – Michael Katt Nov 24 '22 at 09:01
Thank you but it's not worked – Nghihoang Nov 24 '22 at 09:05
Have you access to URL https://repo.maven.apache.org/maven2/org/springframework/boot/spring-boot-starter-parent/2.6.13/spring-boot-starter-parent-2.6.13.pom – Michael Katt Nov 24 '22 at 09:08
There is a notify when I access to this URL : This XML file does not appear to have any style information associated with it. The document tree is shown below. – Nghihoang Nov 24 '22 at 09:09
I have the same problem with Docker in a project that didn't change for weeks. It gets stuck "Downloading from central" and then throws the same error you have. Changing DNS didn't help. However, I can run mvn verify just fine, even deleting folder .m2, and it loads the repo. – Ricardo Aranguren Nov 24 '22 at 18:29

Non resolvable parent POM when create Maven project

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