Vaadin-addons Maven POM File Configuration - maven

Question

I can't get a Vaadin + Spring project built due to vaadin-addons while someone can get it built. The pom file already has the addons repository. The following is the structure of the pom.xml. What is missing? Is the addons repository in a wrong place?
<dependencies>
…
<!-- Vaadin dependencies -->
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-server</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-push</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>com.vaadin</groupId>
<artifactId>vaadin-client-compiled</artifactId>
<version>${vaadin.version}</version>
</dependency>
<dependency>
<groupId>org.vaadin.addons</groupId>
<artifactId>vaadin-combobox-multiselect</artifactId>
<version>2.6</version>
</dependency>
<dependency>
<groupId>org.vaadin.addons</groupId>
<artifactId>vaadin-grid-util</artifactId>
<version>2.1.1</version>
</dependency>
…
</dependencies>
...
<profiles>
<profile>
<!-- Vaadin pre-release repositories -->
<id>vaadin-prerelease</id>
<activation>
<activeByDefault>false</activeByDefault>
</activation>
<repositories>
...
<repository>
<id>vaadin-addons</id>
<url>http://maven.vaadin.com/vaadin-addons</url>
</repository>
</repositories>
Update:
I solve this probule by adding the following in the pom file
<repositories>
<repository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2/</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>vaadin-addons</id>
<url>https://maven.vaadin.com/vaadin-addons</url>
<snapshots>
<enabled>true</enabled>
</snapshots>
</repository>
<repository>
<id>sonatype vaadin</id>
<url>https://oss.sonatype.org/content/repositories/vaadin/</url>
</repository>
<repository>
<id>vaadin-prereleases</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>central</id>
<url>https://repo.maven.apache.org/maven2/</url>
</pluginRepository>
<pluginRepository>
<id>vaadin-prereleases</id>
<url>https://maven.vaadin.com/vaadin-prereleases</url>
</pluginRepository>
</pluginRepositories>

Answer 1

You have defined a profile with the id <id>vaadin-prerelease</id> and the repositories are defined only under that profile. I think this is not what you want; instead, you should define the <repositories> on the same level as <dependencies>. Repositories for a specific profile are only used if you're building with that profile enabled.