The plugin 'org.apache.maven.plugins:maven-jgitflow-plugin' does not exist or no valid version could

[J Kinable]

I've copied the following into my pom.xml:

<plugin>

    <groupId>external.atlassian.jgitflow</groupId>

    <artifactId>jgitflow-maven-plugin</artifactId>

    <version>1.0-m5.1</version>

    <configuration>

<noDeploy>true</noDeploy>

<flowInitContext>

 <developBranchName>development</developBranchName>

</flowInitContext>

    </configuration>

</plugin>

When I run: mvn jgitflow:release-start

I get the following error: 

[INFO] ------------------------------------------------------------------------

[ERROR] BUILD ERROR

[INFO] ------------------------------------------------------------------------

[INFO] The plugin 'org.apache.maven.plugins:maven-jgitflow-plugin' does not exist or no valid version could be found

Any suggestions on how to fix this? Thank you :)

[J Kinable]

It turns out that you need to add:

 <pluginGroup>external.atlassian.jgitflow</pluginGroup>

to ~/.m2/settings.xml

If this file does not exist, you can create it:

<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"

  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0

     http://maven.apache.org/xsd/settings-1.0.0.xsd">

  <localRepository/>

  <interactiveMode/>

  <usePluginRegistry/>

  <offline/>

  <pluginGroups>

    <pluginGroup>external.atlassian.jgitflow</pluginGroup>

  </pluginGroups>

  <servers/>

  <mirrors/>

  <proxies/>

  <profiles/>

  <activeProfiles/>

</settings>

br,

Joris Kinable