Slingfeature Maven Plugin variables issues

[Andreas Schaefer]

Hi all

I use the featuremodelconverter tool to migrate Sling provisioning files to 
feature models.
Then I used the slingfeature-maven-plugin to aggregate them but I ran into an 
issue with variables.
This is the FM json file:

{
  "id": 
"${project.groupId}:${project.artifactId}:slingosgifeature:composum_composum-console:${project.version}",
  "variables":{
    "provisioning.model.name":"composum-console",
    "composum.version":"1.9.2"
  },
  "bundles":[
    {
      
"id":"com.composum.sling.core:composum-sling-core-commons:${composum.version}",
      "start-level":"20"
    },
…

My POM file looks like this:

<plugin>
    <groupId>org.apache.sling</groupId>
    <artifactId>slingfeature-maven-plugin</artifactId>
    <version>1.0.0</version>
    <extensions>true</extensions>
    <executions>
        <execution>
            <id>aggregate-base-feature</id>
            <phase>generate-resources</phase>
            <goals>
                <goal>aggregate-features</goal>
            </goals>
            <configuration>
                <aggregates>
                    <aggregate>
                        <classifier>example-runtime</classifier>
                        <filesInclude>*.json</filesInclude>
                        <markAsComplete>true</markAsComplete>
                    </aggregate>
                </aggregates>
            </configuration>
        </execution>
    </executions>
</plugin>

I get this errors:

[WARNING] The POM for 
com.composum.sling.core:composum-sling-core-commons:jar:${composum.version} is 
missing, no dependency information available
…
[ERROR] Failed to execute goal on project 
org.apache.sling.featuremodel.starter: Could not resolve dependencies for 
project 
org.apache.sling:org.apache.sling.featuremodel.starter:slingosgifeature:0.0.1: 
The following artifacts could not be resolved: 
com.composum.sling.core:composum-sling-core-commons:jar:${composum.version}, 
com.composum.sling.core:com

Is that not supported?
Any way to fix it?

Cheers - Andreas Schaefer